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.

Article: The first Ml choir rehearsal of the school year took place in the school hall. All the students joined together to sing. I watched as my elder sister and her grade came in and took their places next to us on the stage. Meanwhile, I could hear laughing. Some students were pointing at a girl standing next to my sister. I'd never seen this girl before. A girl whispered in my ear, " Did you know she's wearing diapers ?" After school that evening, I asked my sister about the girl I'd seen. She told me her name was Theresa and that she was a very nice girL ." Why were those kids being mean to her? I asked, "Because they're stupid," she said. One day, I was walking home from school when I heard voices behind me. "There's the little idiot's sister. Does your sister wet her pants too?" I walked a little faster and then I felt a atone hit me in the back. When I got home, I ran down to my sister's room. I pushed my way into her room, screaming at her. "Why do you have to be that giri's friend? I don't see anyone else being nice to her, " Janelle yelled back, Because she is a wonderful person and she is dying!" I will remember those words as long as I live. Theresa wet her pants because she had an illness, which was killing her. My sister was the only one nice enough to be her friend and stick up for her. A few months later, Hieresa passed away. I felt proud that Janelle was my sister. Throughout the years I watched her, and she always made friends with everyone. It didn't matter if they ware fat, thin, brilliant or not. She never left anyone feeling isolated or alone. It was she who changed me and taught me to never look at anyone in the same way again.
Question: Why did other students make fun of Theresa?
Options: (A) Because she was dying very soon. (B) Because she was not good at singing, (C) Because she behaved in an unusual way. (D) Because she was usually dressed poorly.
C

Article: By 2050 there will have been an extra 2.5 billion people on earth. And what will they eat? To solve the problem, we should have to double our food production. We can also develop a diet of algae , insects and meat grown in laboratories. Algae can grow very quickly at sea, in polluted water and in places that would normally kill food crops. They are already eaten widely in Japan and China and they are eaten by almost everything from shrimps to blue whales. They can fix CO2 in the atmosphere and provide fats and sugars. Man-made meat looks like meat, feels like meat and it is meat, although it's never been from a living, breathing animal. Instead, it is grown from cells in big containers. Moreover, studies show that producing man-made meat will use far less water, energy and land. China has developed "green super rice", a series of rice types which produce more grain and have stronger ability to fight against floods, salty water, insects and disease. We used traditional plant breeding techniques to cross-breed more than 250 rice types. Green super rice, which is enough to feed an extra 100 million people, will be planted widely in the coming years. Insects like ants are not on most European menus but at least 1,400 kinds are eaten across Africa, Latin America and Asia. Now, with rising food prices and worldwide land shortages, such insects are getting more and more popular. Not only are many insects rich in protein , low in fat and high in Ca and Fe, but insect farms need little space. And they can grow well on paper, algae and industrial wastes.
Question: In order to exist in the future, people have to _ .
Options: (A) move to other planets (B) produce rain in laboratories (C) build new laboratories for food research (D) increase the food production or look for other food sources
D

Article: Wind , water, fire and ice-these powerful natural forces have shaped the land of America in the past. They are still changing it today. The Colorado River slowly cut down through stone to make the Grand Canyon . Long ago, ice sheets cut Yosemite Valley and the Great Lakes, and glaciers are still on the move in Alaska. Wind and rain storm hit the land from time to time. Fires sometimes burn down forests and destroy the homes of wild animals. This happened in Yellowstone Park in 1988. Dead volcanic mountains such as Haleakala on Maui and Carter Lakein Oregon are beautiful to look at. But there are several active volcanoes in the US, especially along the Pacific Coast. There are also many earthquakes in this area. Scientists can do nothing to control earthquakes or volcanoes. This was shown clearly on May 18, 1980. At 8:32 that morning, Mount St Helens in Washington state broke out. The top of the mountain was blown off. Over 60 people -campers, scientists, journalists, forest workers--were killed. Hundreds of square miles of forests were knocked down. In towns over 100 miles away, day suddenly became night. An ash cloud hid the sun for many hours. Towns and fields in Washington, Oregon, and Idaho were covered with dirty gray ash. Scientists knew that Mt St Helens might erupt soon. But no one could say when. And no one expected the terrible strength of the eruption. Many people were surprised and unready. Harry R. Truman, 84, owned a small hotel in Mt St Helens. Scientists had asked people to move away because the volcano was becoming dangerous. But Harry Truman would not leave his home. Now _ is covered with many feet of dirty ash. A small cross stands above the place where Harry probably died. Perhaps it is better that he did not see the destruction of Mt St Helens, the once beautiful lake, and the forests. But slowly, life is returning to the dead area around the mountain. Grass and small plants are beginning to grow again. Deer and birds have been seen. The land will never be the same as it once was. Perhaps Mt St Helens will erupt again. But this is all part of nature's pattern of change, and man has little power to control it.
Question: Choose the best title for this passage.
Options: (A) Wind, water, fire and ice (B) Volcano's beauty and danger (C) The power of nature (D) Natural force shape beautiful land of America
C