Please answer this: Write a multi-choice question for the following article, with the given choices and answer: Article: Bats are impressive creatures. They are known to carry dangerous diseases like SARS without getting sick. So researchers wanted to know: How do bats fight off so many deadly diseases? Learning their secret could help doctors better treat humans who have these diseases, therefore saving millions of lives. To solve this problem, a team of researchers from Australia and China analyzed bat DNA. The scientists studied two kinds of bats--the Australian megabat, known as the flying fox, and the Chinese microbat. The scientists then arranged the bat genome in order by comparing their DNA. The researchers now think that the special immunity to illness that bats have may be connected to their ability to fly. Bats are the only mammals that can truly fly. Flying uses up a lot of energy. The energy burned for flying produces something in the animal called free radicals . Free radicals can damage DNA and lead to diseases such as cancer. However, bats are not affected by free radicals produced during flight. The reason is that bats carry special genes to repair any damaged DNA. Scientists think that because bats fly and produce free radicals, they've evolved to carry genes that shaped their special immune system. "We're thinking that the evolution of flight led to a sort of effect, influencing not only the immune system but also things like aging and cancer," says Chris Cowled, of the Australian Animal Health Laboratory. "We think we've really found something special." Researchers believe that this discovery might one day be key to helping humans fight diseases such as cancer that attack the immune system and damage DNA. Options: A bats and dangerous diseases B bats and their special immune system C free radicals and immune system D ways to cure cancer Answer: B bats and their special immune system Question:
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Answer: The passage is mainly about _ .

Problem: Write a multi-choice question for the following article, with the given choices and answer: Article: An African farmer had heard tales about other farmers who had made millions of dollars by discovering diamond mines. These tales so excited the farmer that he could hardly wait to sell his farm and go prospecting for diamonds himself. So he sold the farm and spent the rest of his life wandering the African continent, searching unsuccessfully for the shining stone that brought such high prices on the markets of the world. Finally, broke and worn out, he threw himself into a river and drowned. Meanwhile, back at the farm, the man who had bought his farm happened to be crossing a small river on the property one day when he saw something shining at the bottom of the river. He picked it up. It was a sparkling stone - a good size stone - and, admiring it, he later put it on his fireplace mantel as an interesting curiosity. Several weeks later, a visitor admired the stone, looked closely at it, lifted it in his hand and nearly fainted. He asked the farmer if he knew what he'd found. When the farmer said no, that he thought it was just a piece of crystal, the visitor told him he had found one of the largest diamonds ever discovered. The farmer was astonished. He told the man that his small river was full of these brilliant stones, and his farmland was covered with them. Not all were as large, perhaps, as the one on his mantel, but they were sprinkled generously throughout his property. Needless to say, the farm the first farmer had sold, so that he could search for a diamond mine, turned out to be the most productive diamond mine on the entire African continent. Options: A He found a river full of diamonds on his farm. B He lost everything including his own life. C He discovered a mine filled with brilliant stones. D He finally got his property back with diamonds. Answer: B He lost everything including his own life. Question:

A: What happened to him after he sold his property?

Q: Write a multi-choice question for the following article, with the given choices and answer: Article: Camp memories last forever! We make sure they are unforgettable! Shadow Ridge Summer Camps offer so many exciting things for campers to do. Unlike other camp programs that include horses as a small part of their program, at Shadow Ridge horses are the program! We are 100% horse from stable management, nature walks, and track rides to bedroom furnishings. Horses help us achieve many of our aims. Girls can learn to develop responsibility, self-confidence and personal connections in their lives while having fun. Using horses as a wonderful tool for education, our camps offer an interesting place for growth and learning. Imagine each girl having her own horse to spend time with and a best friend to love and take care of. Each camper is responsible for a horse for a week. Our riding program provides a lot of riding and lesson time. Campers will learn how to take care of the horse and the track , as well as how to ride. Days are filled with horse-related activities to strengthen the connection between each girl and horse, as the girls learn to work safely around the horses. At Shadow Ridge we try to create a loving, caring family atmosphere for our campers. We have "The Bunkhouse" (4 girls), "the Wrangle Roost" (4 girls), and "The Hideout" (2 girls) in our comfortable 177-year-old farm house. All meals are home cooked, offering delicious and healthy food for the hungry rider. Our excellent activities create personalized memories of your child's vacation. Each child will receive a camp T-shirt and a photo album (usually 300 - 500 pictures) of their stay at camp. Our camps are offered during June, July and August 2007, for small groups of girls aged 13 -16 years, not only from Canada but also other parts of the world. We will send you full program description at your request. Options: A The time of the camping. B The cost of the camping. C The advantages of the camping. D The effect of the camping. Answer: B The cost of the camping. Question:
A:
Which one of the following isn't mentioned in the passage?