Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Many companies use guards and expensive alarm systems to protect their property . Soon a new kind of protection will be used--robots. Engineers have been working on the first mobile robots for businesses. The robots will guard factories, warehouses and museums at night. The mobile robots will move around slowly on wheels. They will be able to detect(,) people through walls and pick up sounds, such as breaking glass. They can be fixed with loud sirens to frighten thieves, or radios to signal police or guards. To protect a building, a robot will have to move around without knocking into the walls. Information about the building will have to be stored in the robot's small, built-in computer. A floor map could be programmed into the computer's memory, for example. A mobile robot will not be able to do everything. Unlike human guards, it will not be able to climb stairs, open doors, or move along rough ground. It won't be able to tell the difference between friends and enemies. Because of that, people will have to be prevented from entering the area it moves. One kind of mobile robot will be able to "sense" whether a chair or a box has been moved and go around it. This robot will also judge size well enough so that it won't send an alarm if a cat crosses the room. And if someone tries to steal this robot, it will sound a loud, painful siren. The three-foot-tall robot is hard to be stolen anyway. It weighs about 200 pounds. U.S. companies pay almost $10 billion a year to protect their property with alarm systems and human guards. Mobile robots may be cheaper. Options: A New Guards. B Science and Technology. C Alarm Systems. D Engineers and Robots. Answer: A New Guards. Question:
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The answer is:
What can be the best title of this passage?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Having a part-time job is an important part of growing up for American teenagers. It can teach them important skills that will be useful for the rest of their lives. And many teenagers find that making their own money gives them a sense of pride and freedom. American teenagers are allowed to do part-time jobs at the age of 14. During the school year, teenagers may go to work a few times a week after school, and work for longer at weekends. In summer, top part-time jobs for teenagers include at camps, swimming pools and amusement parks. These jobs are great for those who want to be active and have fun while making money. Some of the most stressful jobs include teaching, nursing, and police work. These skills help to prepare teenagers for their later lives. When they grow up, the students with work experience are more likely to succeed than those without work experience. A favorite job for many teenagers is babysitting, and they can start before the age of 14 if their parents agree. As long as they stay in the house and make sure the kids are okay, babysitters can do their homework, watch TV, or talk on the phone with friends. After the kids go to bed and before the parents come home, babysitters have lots of freedom. It can be stressful to balance school, homework, and a part-time job. However, many American teenagers _ their work experience and the skills they get from the job. Options: A Because they don't want to be stressed out. B Because they can learn skills and get money. C Because they can get a good job in the future. D Because they can do anything they like. Answer: B Because they can learn skills and get money. Question:
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The answer is:
Why do American teenagers like to have a part-time job?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: One day , there was a blind man called John was on the bench with a hat by his feet and a sign that read , "I am blind . Please help me . A creative publicist named Tom was walking by the blind man and stopped to see that the man only had a few coins in his hat . He put a few of his own coins in the hat . Without asking for permission , he took the sign , turned it around and wrote a new message . Then he put the sign by the feet of the blind man and left. Later that afternoon the publicist returned to the blind man and noticed that his hat was almost full of bills and coins . The blind man recognized his footsteps and asked if it was he who had changed his sign . He also wanted to know what the man wrote on it . The publicist said , "I just wrote the message a little differently ." He smiled and went on his way. The new sign read , "Spring has come , but I can't see anything ." Options: A By his sign. B By his footsteps. C By his voice D By his coins. Answer: B By his footsteps. Question:
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The answer is:
How did the blind man recognize the publicist? _ .