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:
It's often difficult to remember how or why you became friends with someone, especially if you've been friends with a person forever. But because of the very specific set of circumstances, I remember exactly how Barend and I became friends. This, of course, was long before he became famous for inventing the easy-foldable map, and infamous for the series of bodies he'd decided to bury in his backyard. Barend and I became friends because he had one of the most attractive shadows I'd ever seen. I remember gazing out over the playground, watching a waning sun scatter its dying light over the monkey bars, the metal skeleton contrasting against the turquoise sky, when I noticed this kid coming toward me. He was one of those mostly invisible characters; faded jeans, dirty jacket, snot caked on his upper lip. I probably wouldn't have noticed him if not for his shadow. For some reason, his shadow immediately caught my eye. Now, I'm not one for noticing shadows in general, never really noticed a shadow before or since, but this kid had the most incredible shadow I'd ever seen. I cannot even put in words what that means. What specific set of properties make an ordinary shadow into an incredible one, I'm not sure anyone can, but his shadow was like a piece of art; I didn't necessarily understand it, but I liked it. And that's why this boring looking kid and I first became friends. Our kindergarten games were harmless and boring, but when puberty hit, Barend began to change. We were both expected to change, but I guess some kids just change more than others. Bared didn't want to kill at first. Like many overachievers in the death game, his first brush with the craft came about more or less accidentally. All the elements had been in place, with all the players and attributes coming together as if gathered by some evil force, but, even then, I really had to push the kid. Question: Who is the most invisible character?
Answer:
Barend