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.

[Q]: 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
[A]: D

[Q]: Article: I'm fat, I'm too skinny.I'd be happy if I were taller, shorter, had curly hair, straight hair, a smaller nose, bigger muscles, longer legs. Do any of these statements sound familiar? Are you used to putting yourself down? If so, you' re not alone.As a teen, you're going through many changes in your body.And as your body changes, so does your image of yourself.Lots of people have trouble adjusting, and this can affect their self-esteem . If you have a positive body image, you probably like and accept yourself the way you are.This healthy attitude allows you to explore other aspects of growing up, such as developing good friendships, growing more independent from your parents, and challenging yourself physically and mentally.Developing these parts of yourself can help boost yourself-esteem. A positive attitude and a healthy lifestyle (such as exercising and eating right) are a great combination for building good self-esteem. Some people think they need to change how they look or act to feel good about themselves. But actually all you need to do is change the way you see your body and how you think about yourself. The first thing to do is recognize that your body is your own, no matter what shape, size or color it comes in.If you are very worried about your weight or size, check with your doctor to verify that things are OK.But it is no one's business but your own what your body is like--ultimately, you have to be happy with yourself. Next, identify which aspects of your appearance you can realistically change and which you can't.Everyone has things about themselves that they can't change and need to accept--like their height, for example, or their shoe size. When you hear negative comments coming from within yourself, tell yourself to stop.Try building your self-esteem by giving yourself three good things every day.By focusing on the good things you do and the positive aspects of your life, you can change how you feel about yourself. The most important thing is to get help if you feel like your body image and self-esteem are affecting your life.
Question: If we have a positive body image, we will _ .
Options: (A) concentrate on our body image only (B) not develop strong self-esteem (C) like and accept ourselves as we are (D) be less independent of our parents
[A]: C

[Q]: Article: When you buy cooking oil in the supermarket, you may notice that some brands are labeled as "GM (genetically modified)-free". So, what is genetic modification? Are GM foods safe? These questions have been put back into the spotlight recently. On Nov 19, the Food and Drug Administrati0n (FDA) in the US announced that it had approved the AquAdvantage salmon to go on the market, making it the first genetically modified animal to be approved as food anywhere in the world. GM foods are plants or animals that have been given a gene from another plant or animal to make them stronger in some way. The AquAdvantage salmon contains a gene from another type of salmon that makes it grow faster. Although the FDA has said "food from the fish is safe to eat", some believe that scientists can't completely understand the potential health risks of GM foods, simply because they're so new. Others worry that the fish could escape into the wild and cause ecological problems. GM crops have experienced the same controversy, even though GM technology cuts down on the use of pesticides on crops and increases yields. While GM animals are new, GM crops have already appeared on our plates: A total of 28 countries in the world including the US, Brazil and India planted 181.5 million hectares (1.815 million km2) of GM crops in 2014, according to the International Service for tile Acquisition of Agri-biotech Applications. In China, we grow GM cotton and papaya and import GM soybeans, corn, rape, cotton and beets from abroad. Due to safety worries, many countries have regulations for producing and selling GM food. In European Union countries, each GM food must be approved before it can be used. This process can take up to 17 months. The origin of all GM foods must also be traceable, and all food with a GM content of more than 0.9 percent must also be labeled, according to EU website europa.eu. The US is less strict about GM foods. According to FDA regulations, companies introducing new GM foods to the market should report them at least 120 days before release. The labeling is voluntary, except that a product cannot be labeled as "GM-free" if genetically modified materials are used. In China, GM foods can only be produced after strict tests by the Ministry of Agriculture say that they are safe. All food that is made from GM crops or contains GM ingredients must be clearly labeled on the wrapper.
Question: According to the text, the AquAdvantage salmon _ .
Options: (A) tastes better than normal salmon (B) is a product that mixes several types of fish (C) has a gene from a different type of salmon (D) remains to be approved in several countries
[A]:
C