Write the right answer to the question based on the context passage.

Let me give you an example: Television drama's whole point is to bring you through an often slow start, followed by a complex development to a point where there are two or three potential dénouements before, "Cut!", it is the end of the episode and you will have to await the "right answer" in the following week's show.
This post came to me at 10pm last night, on Day 16 of this challenge, after a day of holidaying in London and with my head (and feet) too weary to put finger to touchscreen.
Mrs Mc and I had just watched another live instalment of Broadchurch, murder mystery extraordinaire, particularly since in the second series there is no actual fresh murder to investigate. The verdict is about to be given on the accused killer from Series 1 when the inevitable happens... Cue title music.
This moment has even gained a moniker in British homes, based on the theme tune to the real masters of the four-times-a-week cliffhanger, London-based soap opera Eastenders. It's call a "ba...ba...ba...ba, ba, ba-ba-ba-ba" (YouTube will provide overseas readers with auditory explanation).
Eastenders is such a master of writing in the perfect pace that every 28 minute episode ends with a tantalising screen freeze on the latest shocked face / smirking baddy / confused victim. For really big stories the cliffhanger can last significantly longer. This week, to celebrate the show's 30 year birthday, we will finally find out the answer to a question unanswered for the past 14 months: "Who killed Lucy Beale?"
Now, most classrooms do not involve murder, incest, dodgy deals and danger, but "good teaching" encourages a type of pacing that totally ignores the ingredients that have millions in the edges of their seats every day: the good old cliffhanger. In fact, we see teachers giving away the punchline at the beginning: "Today we are learning this:...". Question: What was the soap opera admired by British people that the author says is a master of writing?
The answer to this example can be: Eastenders
Here is why: The seventh sentence of the passage clearly states that Eastenders is master of writing. So, the answer is Eastenders.

OK. solve this:
U.S. President-elect Donald Trump's choice to lead the Department of Homeland Security, retired Marine General John Kelly, is one of the U.S. military's longest-serving commanders and the most senior officer since 9/11 to lose a child in combat.
Blunt-spoken and popular with military personnel, Kelly, 66, was born and raised in Boston. He initially enlisted in the U.S. Marine Corps in 1970, and was discharged from active duty as a sergeant in 1972. He returned to the Marine Corps after graduation from the University of Massachusetts Boston in 1976.
Kelly rose through the ranks to serve as the commanding general of the Multi-National Force West in Iraq from February 2008 to February 2009, and as the commander of Marine Forces Reserve and Marine Forces North in October 2009. He succeeded General Douglas Fraser as commander of U.S. Southern Command (USSOUTHCOM) on Nov. 19, 2012.
As the head of USSOUTHCOM, Kelly was in charge of the military jail at Guantanamo Bay, Cuba, and also was exposed to immigration, drug trafficking and other cross-border problems over a sprawling area that encompasses 32 countries in the Caribbean, Central America and South America.
Kelly took a tough tone on border security, warning Congress last year about the risks of smuggling rings in Mexico and Central America that spirited "tens of thousands of people," including unaccompanied children, "to our nation's doorstep."
He also clashed with the Obama administration over plans to close Guantanamo and the Pentagon's order that opened all jobs in combat units to women, including the most elite forces like the Navy SEALs.
In 2010, Kelly became the highest ranking U.S. military officer to lose a child in combat operations in Southwest Asia. His youngest son, 1st Lieutenant Robert Michael Kelly, was killed in action in Afghanistan on Nov. 9, 2010. The younger Kelly was a Marine and was on his third combat tour, but on his first combat tour as a Marine Corps infantry officer.
Since his son's death, Kelly has talked in stark terms about the threats the United States faces in the Middle East and beyond. Question: What issue did John Kelly clash with the Obama administration over?
Answer:
Plans to close Guantanamo and the Pentagon's order to open jobs in combat units to women