In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].

[Q]: (CNN) Your "BPA-free" plastic product may be no safer than the product it replaced, says a new UCLA study that analyzed the impact of a common BPA alternative on zebra fish embryos. The study joins a small but growing group of similar research sounding the alarm about so called "BPA-free" alternatives. "Our findings are frightening and important," said senior author and reproductive endocrinologist Nancy Wayne. "Consider it the aquatic version of the canary in the coal mine." After decades of animal research linked BPA (Bisphenol A), a known endocrine disruptor, to problems with brain and reproductive development, early puberty and a rise in breast and prostate cancer, many manufacturers stopped using the chemical to harden plastics, replacing it with "BPA-free" alternatives. The most common replacement is BPS (Bisphenol S), said Wayne.BPA-free alternatives may be no safer than BPA, say researchersMost common alternative, BPS, linked in study to disruptions of estrogen and thyroid hormones 
 Question:In addition to the effect on estrogen, the study also found both _ and BPS affected the thyroid hormone system.
[A]: BPA


[Q]: Soccer star Hope Solo was spotted in Vancouver on Wednesday spending time with husband Jerramy Stevens. Stevens flew up to join his wife as she and Team USA prepare for their Round of 16 match against Colombia on Monday. The former football star has been very vocal in supporting his wife recently after reports emerged that she was required to stay 300 feet away from a student when she was a senior at Richland High School in Washington back in 1998 after allegedly  punching the girl in the eye and mouth and saying 'I f****** hate you, you fat a** whore.'Hope Solo was spotted with husband Jerramy Stevens in Vancouver on WednesdaySolo is in Canada with Team USA for the World CupThe team next plays Colombia on Monday in the Round of 16Stevens defended his wife against a report released last week claiming she punched and taunted a girl as a teenagerThe former NFL player says his wife is being treated unfairly calling what happened an 'unfortunate incident'Stevens was arrested in January on suspicion of DUI while driving the Team USA van, a move that got Solo suspended for 30 days 
 Question:But _ is the strongest person that I've ever known.
[A]: Hope Solo


[Q]: (CNN) Every day we learn more about the scale and effectiveness of Russian influence operations during the 2016 US election. The implications for our political process are ominous, but the problem runs much deeper. For years hostile foreign governments, terrorist groups, and armies of internet trolls have manipulated public discussion, both in the United States and around the world. We must understand Russia's manipulative attack during last year's presidential elections in a broader context: as a relatively traditional propaganda operation that achieved unprecedented reach because social media companies are either unable or choose not to defend themselves. Every time our society falls victim to an information attack, we blame the attacker, but not their weapons. It's hard to accept that the platforms we use to chat with friends and share baby photos can have such a powerful impact in shaping democracy. Platforms like Google, Facebook, and Twitter have fundamental flaws that must be fixed if we're going to protect ourselves in the future.Jonathon Morgan: For years hostile governments, terrorist groups, and internet trolls have manipulated public discussionSocial media and government have to take steps to prevent this, Morgan says 
 Question:In October, 2016, Obama administration intelligence officials formally accused _ of meddling in US elections.
[A]:
Russian


