In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Article: Check out our tsunami facts and learn some interesting information related to these great walls of water that can cause so much destruction. Find out what causes tsunamis and read about some recent examples of tsunamis that have occurred around the globe. The Japanese word for tsunami means harbor wave. Tsunamis are sometimes called tidal waves but this term has fallen out of favour because tsunamis are not related to tides. Tsunamis are huge waves of water that are usually caused by earthquakes or volcanic eruptions. As a tsunami approaches the shore, water may move back from the coast. If it is shallow enough the water may be pulled back hundreds of metres. If you are in the area, you can know that a tsunami is on the way when you see this phenomenon. Regions in tsunami danger zones often have warning systems in place to give people as much time as possible to move to a safe place. When tsunamis hit shallow water (often near the coast) they slow down but increase in height. An earthquake in the Indian Ocean off Indonesia in December 2004 caused a tsunami that killed over 200,000 people in 14 countries. In March 2011, the Tohoku earthquake off the eastern coast of Japan caused a tsunami that was a major factor in the death of over 15,000 people. The tsunami waves created by the Tohoku earthquake reached a height of over 40 metres in some areas, wiping out coastal towns and causing a number of nuclear accidents.
Answer: Four.
How many causes of tsunamis are mentioned in the text?

Article: China's auto production is expected to grow by 20 percent in 2005 to 6 million vehicles , possibly passing Germany as the world's No. 3 producer. China is the world's-fastest-growing auto market as rising incomes make it possible for millions to buy their cars. Foreign automakers are investing billions of dollars in expanding production in China. Germany produced 5.5 million vehicles in 2004, the No. 3 producer behind the United States and Japan. London is quickly becoming a major cycling city after the terrorist ( ) bombings on London's subway and bus system July 7, which killed 52 people. London Mayor Ken Livingstone wants to increase cycling 80% by 2010. "Cycling is the fastest, cheapest, most healthy and environmentally friendly way to get around London, and more and more people are taking it up," Livingstone said. "The number of cyclists has doubled over the last five years, while those killed or seriously injured has fallen by 40%." Under the London Cycling Action Plan, Livingstone hopes to make London a world-class cycling city to reduce congestion and pollution. London now has 273 miles of bike roads, half built since 2000. The goal is 560 miles by 2010.
Answer: Because Chinese are getting higher incomes.
Why is China the fastest-growing auto market?

Article: The adolescent girl from Tennessee was standing on the stage of a drama summer camp in New York.But the girl didn't feel joyful.She was not the leggy,attractive Hollywood type.In fact,she described herself as stupid. This girl was Reese Witherspoon,who had wanted to be a country singer and admired and respected Dolly Patton very much. That day at the end of the camp her coaches told her to forget about singing.They suggested she think about another career.She took their words to heart.After all,why shouldn't she believe the professionals? But back at home in Nashville,her mother--a funny,happy,optimistic woman--wouldn't let her feel depressed.Her father,a physician,encouraged her to achieve in schoo1.So she worked hard at everything and was accepted at Stanford University. And at 1 9,she got a part in a low-budget movie called Freeway, which prepared for her role in the movie Pleasantville.But her big break came with Legally Blonde. "If you can't sing and you aren't charming,play to your strengths.If you're going to make it in this business,better focus on what you're good at,"she told the interviewer later. And then came the offer that took her back to her Nashville--playing the wife of a country star Johnny Cash,a singing role. All of a sudden the old fears learned on that summer stage were back.She was so nervous on the stage.But she didn't give up on the movie or herself.She spent 6 months taking singing lessons again.She learned to play the Autoharp.And the hard work built up her confidence. Last March,Reese Witherspoon walked up on another stage,the Kodak Theatre in Hollywood,and accepted the Oscar as Best Actress for her heartbreaking,heartwarming singing role as June Carter Cash in Walk the Line.
Answer: The experts advised her to give up singing.
Why was Reese Witherspoon sad that day?