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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].
question:
Britons are by far the biggest adopters of contactless payments in Europe as the use of the system continues to climb across the continent, new figures reveal. More than one billion contactless transactions worth €12.6billion took place in Europe over the last 12 months – a three-fold increase when compared to the same period in 2014, according to Visa Europe. Britain is the country with the highest number of contactless transactions, with 52.6million worth more than €330million made in March alone, followed by Poland and Czech Republic, with 49.7million and 13.9million transactions respectively. This rapid growth in the UK was fuelled in part by the launch of contactless payments on Transport for London services last September, Visa Europe said.The UK issues the highest number of contactless cardsBritons made 52.6million transactions worth more than €330million in MarchSome 1.1billion contactless transactions worth €12.6billion were made by Visa cardholders across Europe in the last 12 months 
 Question:_ is a payments technology business owned and operated by member banks and other payment service providers from 37 countries across Europe.
answer:
Europe


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(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.
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BPA


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(CNN) Looks like some Donald Trump supporters are still holding a grudge against Mitt Romney for the way the 2012 GOP nominee criticized Trump during the campaign. The President-elect is considering Romney for secretary of state, and according to news reports, before these Trump insiders will support Romney, they want him to apologize for calling Trump such things as a "phony" and a "fraud." Kellyanne Conway, one of Trump's top advisers, used the language of betrayal to describe how Trump supporters feel about Romney, telling CNN's Dana Bash, "I'm all for party unity, but I'm not sure we have to pay for that with the secretary of state position." After being criticized for assailing Romney publicly instead of conveying her thoughts to Trump privately, Conway tweeted that the "point is the volume & intensity of grassroots resistance to Romney is breathtaking."Dean Obeidallah: Trump loyalists upset Mitt Romney being considered as secretary of stateSome want Romney to apologize first for criticizing Trump in campaign, he says 
 Question:There are, of course, others _ might want to consider apologizing to -- to prove he has changed as a person and learned right from wrong.
answer:

Donald Trump