In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.

Ex Input:
Article: Alice Wilder, a 17-year-old student at Northwest School of the Arts in North Carolina, considers herself a feminist . She is one of 26 bloggers for SPARK, an international group founded in 2010. The group fights the use of the female body as a marketing tool in the media. Alice found out about SPARK when the organization launched a campaign demanding Seventeen Magazine feature a more diverse group of models. She applied to be a blogger for the group in May and won one of the positions. Each month, Alice pitches (...) her girl -and women - centric blog post ideas via online chat to an editor at SPARK. So far, she has written about topics such as female actresses, choosing what to wear, and dealing with anger. Alice said she hopes large companies and media stop editing images of women. Increases in bust size, decreases in waist size, smoothing and whitewashing skin are what Alice notes. "We want them to know that these images are bad for our development," Alice said. "Three out of four teen girls feel bad about themselves after reading a fashion magazine for three minutes," she said, according to SPARK's research. Alice first felt it necessary to advocate for women in the fifth grade, after seeing a girl's T-shirt with writing on the front that read: "Who needs brains when you have these?" "I was raised with this idea that if you don't like something, you can change it," Alice said. So Alice started following feminist bloggers. Alice juggles class work with blogging and creating videos and serves as editor-in-chief of her school's newspaper. It is amazing that she can handle everything well at the same time. She's also focused on creating projects that aim to inspire girls - like designing a "girl power bathroom" at her school. The newly designed third-floor restroom is completed with pastel paint color1s and inspirational quotes from women around the world. "Sisterhood is powerful," Alice said. "It can make you feel less alone."
Question: This article is mainly about _ .
Options: (A) what being a feminist means in today's American society (B) Alice Wilder's participation in feminist activities (C) how girls and women fight for their rights in the US (D) the ways that the US media misleads girls

Ex Output:
B

Ex Input:
Article: Humans and many other mammals have unusually efficient internal temperature regulating systems that automatically maintain stable core body temperatures in cold winters and warm summers. In addition, people have developed cultural patterns and technologies that help them adjust to extremes of temperature and humidity . In very cold climates, there is a constant danger of developing hypothermia , which is a life threatening drop in core body temperature to below normal levels. The normal temperature for humans is about 37.0degC. However, differences in persons and even the time of day can cause it to be as much as 6degC higher or lower in healthy individuals. It is also normal for core body temperature to be lower in elderly people. Hypothermia begins to occur when the core body temperature drops to 34.4degC. Below 29.4degC, the body cools more rapidly because its natural temperature regulating system usually fails. The rapid decline in core body temperature is likely to result in death. However, there have been rare cases in which people have been saved after their temperatures had dropped to 13.9-15.6degC. This happened in 1999 to a Swedish woman who was trapped under an ice sheet in freezing water for 80 minutes. She was found unconscious, not breathing, and her heart had stopped beating, yet she was eventually saved despite the fact that her temperature had dropped to 13.7degC. In extremely hot climates or as a result of uncontrollable infections, core body temperatures can rise to equally dangerous levels. This is hyperthermia. Life threatening hyperthermia typically starts in humans when their temperatures rise to 40.6-41.7degC. Only a few days at this extraordinarily high temperature level is likely to result in the worsening of internal organs and death.
Question: Why can humans keep stable body temperatures in different seasons?
Options: (A) Because their bodies are unusually efficient. (B) Because they experience different climates. (C) Because they can adjust to cultural patterns and technologies. (D) Because they have internal temperature regulating systems.

Ex Output:
D

Ex Input:
Article: There is probably no field of human activity in which our values and lifestyles are shown more clearly and strongly than they are in the clothes that we choose to wear.The dress of an individual is a kind of "sign language" that communicates a set of information and is usually the basis on which immediate impressions are formed.Traditionally,a concern for clothes was considered to be an affair of females,while men took pride in the fact that they were completely lacking in clothes consciousness . This type of American culture is by degrees changing as man dress takes on greater variety and color.Even as early as 1955,a researcher in Michigan said that _ White collar workers in particular viewed dress as a symbol of ability,which could be used to impress or influence others,especially in the work situation.The white collar worker was described as extremely concerned about the impression his clothing made on his superiors .Although blue collar workers were less aware that they might be judged on the basis of their clothing,they recognized that any difference from the accepted pattern of dress would be made fun of by fellow workers. Since that time,of course,the patterns have changed:the typical office worker may now be wearing the blue shirt,and the laborer a white shirt;but the importance of dress has not become less.Other researchers in recent years have helped to prove its importance in the lives of individuals at various age levels and in different social and economic status groups .
Question: The passage tells us that _ .
Options: (A) our values and lifestyles are in no field of human activity (B) the clothes that we choose to wear have something to do with our values and lifestyles (C) our values and lifestyles are from the sign language (D) the clothes we choose to wear depend on a set of information and immediate impression

Ex Output:
B