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: Nature is full of color, from rainbows and roses to butterfly wings and peacock tails. Even the fruits and vegetables you eat have different colors: blue blueberries, red strawberries, green broccoli, and orange carrots. Plant and animals often use color to attract attention. The substances responsible for these colors belong to a class of chemical called antioxidants . Plants make antioxidant to protect themselves from the sun's ultraviolet(UV) light. Ultraviolet light causes chemicals called free radicals to form within plant cells. They can destroy parts of plant. Free radicals also have damaging effects on human beings. Some of these effects like wrinkled skin can be seen. The damage is caused by the free radicals attacking cells in our bodies. Certain cancers and heart disease are linked to free radicals. Our bodies have natural defences for fighting off free radicals. While we are young, our defences are pretty strong. However, they get weaker as we get older. The body's built-in defences can only go so far without extra help. The key to fighting free radicals with fruits and vegetables is to mix and match colors. It's like sunscreen for the inside of your body. Go for a range of very bright colors. Colorful foods contain hundreds of healthy chemicals not found anywhere else. Research into how chemicals in blueberries affect the brain's function in rats suggests that these chemicals may help our own brains work more efficiently. Don't just blame the sun. Ultraviolet light isn't the only source of free radicals. If you breathe polluted air such as smog, automobile exhaust , or wasted gas from a factory, you take in chemicals that also cause such damage. And, the body itself produces free radicals as it processes food.
Question: Which of the following not true?
Options: (A) Antioxidants are responsible for plant colors (B) Plants use color to attract attention (C) Antioxidants can protect plants from UV light (D) Antioxidants help free radicals to attack plants
D

Article: The wombat is in trouble. Some are dying in bushfires, or being shot by farmers. Others are scratching themselves to death because of a mite infection. Only 115 of one species - the northern hairy-nosed wombat - remain alive in the wild. Wombats are endemic to Australia. They are found nowhere else. A wombat looks like an overgrown, stocky guinea pig, covered with thick grey fur and with a wide, flat, broad forehead. Fully-grown adults are about a meter long and about half a meter tall. They weigh about 40kg. But while their looks are pretty straightforward, people throughout history have found it less easy to understand their behavior. The Aborigines seem to have mixed feelings about them, According to one story, the wombat once said he was more powerful than the sun. After a competition, however, the wombat lost, and so today hides from shame, deep down in a hole. But another Aboriginal story tells of how wise the wombat can be. He comforts the other animals in the forest, after their friend, a cockatoo, has died, explaining to them all about forest spirits. Wombats are strong diggers, with very powerful front legs and sharp claws, usually used to dig winding holes in the ground for their homes. Yet despite their strong appearance, these animals are struggling to survive. Many have been suffering a lot from a foreign mite, from foreign foxes, introduced for hunting by the early English settlers of Australia. Because of scratching, scars form over the wombats' eyes and ears, and infections occur, finally causing their death. Its population is so small that the group is becoming inbred . Competition with cattle and sheep for grass to eat, drought, bushfires, as well as dingo and feral dog attacks have all whittled away wombat numbers. But fortunately, a group of committed volunteers and scientists, working with the local government, has now put up fences to protect the wombats from meat-eating animals, made holes for extra shelter, and is working with zoos to create developing programs. These conservationists are well aware they have little time left.
Question: According to the passage, wombats _ .
Options: (A) look like big cats. (B) are similar to foxes in size. (C) give people a sense of weakness. (D) are good at digging holes in the ground.
D

Article: In Asia,there are special competitions where kites have complex designs and are fitted with instruments that make musical sounds as the wind blows through them.Although all kites have a similar structure ,they are widely different in size and shape.Kitefighting competitions are also held,in which competitors use their kites to attack and bring down their opponents' kites or cut their strings . For more than 15 years,the Big Wind Kite Factory has been giving kitemaking and kiteflying classes for the children on an island in Hawaii.In its kitemaking lessons,students can make kites in as little as 20 minutes!Children as young as four years old can learn how to fly a kite.Jonathan Socher and his wife Daphne started the kite factory in 1980.Their kites are made of nylon .Their designs are Hawaiian themes created by Daphne.The designs are cut out of the nylon with a hot knife that seals the edges and then fastened directly onto the kite. The kite that is used to give lessons is a regular diamond kite with a rainbow pattern.The difference between this kite and the ones they make during the lessons is that it is a twostring controllable kite.Big Wind employees fly the kite and for a few minutes show students how pulling on one line and then on the other controls the direction the kite goes in.Then the controls are given to the students. Jonathan insists that it is not necessary to make a huge impressive kite to have fun making and flying kites.Even the simplest structure can work,and can give hours of fun.Go on,give it a try! (2012*,D)
Question: Which of the following is TRUE according to the text?
Options: (A) A hot knife is used to iron the nylon. (B) Children never fly kites on their own in flying lessons. (C) Kite strings must not be cut in kitefighting competitions. (D) Daphne designs kites for the Big Wind Kite Factory.
D