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.

Example Input: Article: Instead of a normal court hearing, the trial on Wednesday appeared more like a prepared drama. Hundreds of reporters waited outside the court, in the hope of learning "shocking" information about the case, which includes well-known military singer Li Shuangjiang's son, who gang-raped a woman with another four men on February. The case was not a public hearing because it includes teenagers, whose privacy must be protected under law, but many details had been exposed by the lawyers before the trial. Lawyers of all five suspects and the woman's lawyer made a lot of debate on the Internet before the trial, making the case more confused. Wu Ming'an, a law professor from the China University of Political Science and Law, said it was a pity to see such a "performance" by the lawyers. "It can be understood that the two parties freely spoke their opinions, but it's not professional or wise to see lawyers do the same," Wu said. "Instead, the lawyers should guide and persuade their clients to calm down, especially for such a non-public and sensitive case." China has no clear rule to manage lawyers' behavior before trials, "but it should be general knowledge that the lawyers of the two sides cannot _ too many details, particularly in a case that includes teenagers", Wu added. Yi Shenghua, a lawyer who has been following the case, said it does more harm than good to both parties for such detailed information to be exposed before the trial. "It's OK for lawyers to speak, but what is said must be reasonable and legal. Although judgments should not be affected by public opinion, it's hard for them not to be," he said, suggesting judicial authorities should speak out if the case goes wrongly. Trials must be conducted based on evidence, while lawyers should protect their clients' rights instead of adding fuel to the flames, Yi said. In my eyes, the most important aspect of the case, lies in how to make lawyers do their work more professionally and reasonably.
Answer: Because many details had already been exposed before the trial.
Example Output: Why was the case not a public hearing?

Example Input: Article: For a long time, the traditional method of identifying liars was to watch their body language, including facial expressions. What if the person appears to be nervous? Is the person unable to look me in the eye? Is he or she look around the room? What about other nervous movements, such as fidgeting or shifting from side to side? Many people--from parents to police officers and airport security personnel--depend on this method. But does a person's body and face reveal the truth? Not according to a new study. Talking, it seems, is the best way to smoke out a liar. That is what researchers in the United Kingdom found out recently. Their investigation took place at one place where lying can get you into big trouble--an airport. The researchers asked volunteers to pretend they were real passengers and then lie to airport security agents. Some of the agents used spoke conversation-based methods to question these make-believe passengers. Others depended instead on the person's body language, like lack of eye contact and showing signs of nervousness. The agents talking with the passengers were 20 times more likely to catch the liars. The study found that these conversation-based techniques can help you recognize when a person is lying to you. Like many methods, this conversation method has a name. It is called Controlled Cognitive Engagement or CCE, for short. The British government partly financed this study. The American Psychological (APA) published the findings. Body language cannot be trusted. Using body language and facial expressions to catch someone in a lie is really hard. And it only works, seemingly, by chance. Thomas Ormerod is the head of the School of Psychology at the University of Sussex in England. On the APA website, he reported that the "suspicious-signs method"--or using body language--"almost completely fails" in finding lies.
Answer: Communicate with researchers by talking.
Example Output: What should volunteers in the investigation do?

Example Input: Article: An upper class British lady once declared: " Anyone seen on a bus after the age of 30 has been a failure in life." This may sound arrogant and ignorant. Unfortunately, there are still people thinking that way. Some wealthy folk in the West look down on buses and boast about how many years it has been since they last travelled by one. How sad is that? Our roads are packed with cars and the air is full of the pollution they emit. But still, many car users are unwillingly to get on a bus or a bike or a train to take themselves to work. It's convenient to drive, they'll say. Buses are so unreliable, they'll claim. And trains are expensive - at least in the UK. It's an attitude which may have to change. It doesn't make sense to drive a car in a city where there's a public transport system. Also, these rush hour commuters usually travel alone. As a result, transport authorities in the UK are looking at solutions to city center congestion . One is to increase the number of parking spaces at out-of-town railway stations. More motorists can then leave their cars and travel into the city by train. Light rail or tramways are another environmentally friendly solution. Many cities across Europe have had light rail or tramway systems. The subway in London is used by everyone, rich and poor. It's the quickest way of getting around the city, whatever your bank balance. And then there are the cycle hire plans you find in many modern cities. In London and Paris, you can hire a bike by the hour to get you where you need to go. Mayor of London, Boris Johnson, is often pictured cycling to work. David Cameron, the British prime minister, cycled to the House of Commons before he became leader.
Answer: Driving cars has little effect on environment.
Example Output:
Which of the following is NOT the reason why some car users are unwilling to change their way of transport?