Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

[Q]: Does everyone want a challenging job? In spite of all the attention focused by the media, academicians, and social scientists on human potential and the needs of individuals, there is no evidence to support that the vast majority of workers want challenging jobs. Some individuals prefer highly complex and challenging jobs; others develop in simple, routine work. The individual-difference variable that seems to gain the greatest support for explaining who prefers a challenging job and who doesn't is the strength of an individual's needs for personal growth and self-direction at work. Individuals with these higher-order growth needs are more responsive for challenging work. What percentage of ordinary workers actually desire higher-order need satisfactions and will respond positively to challenging jobs? No current data is available, but a study from the 1970s estimated the figure at about 15%. Even after adjusting for changing work attitudes and the growth in white-collar jobs, it seems unlikely that the number today exceeds 40%. The strongest voice advocating challenging jobs has not been workers--it's been professors, social science researchers, and media people. Professors, researchers, and journalists undoubtedly made their career choices, to some degree, because they wanted jobs that gave them autonomy, recognition and challenge. That, of course, is their choice. But for them, to force their needs onto the workforce in general is presumptuous . Not every employee is looking for a challenging job. Many workers meet their higher-order need off the job. There are 168 hours in every individual's week. Work rarely consumes more than 30% of this time. That leaves considerable opportunities, even for individuals with strong growth needs, to find higher-order need satisfaction outside the workplace. So don't feel you have a responsibility to create challenging jobs for all your employees. For many people, work is something that will never excite or challenge them. And they don't expect to find their growth opportunities at work. Work is merely something they have to do to pay their bills. They can find challenges outside of work on the golf course, fishing, at their local pub, with their friends in social clubs, with their family, and the like.
[A]: What makes people choose challenging jobs?


[Q]: The Canon de 75 mle TR was a field gun used by Belgium during World War I and World War II. It was a license-built copy of the Krupp M 1905 gun.
[A]: What year was Canon de 75 mle TR made?


[Q]: In a brief period between World War I and World War II the Kingdom of Yugoslavia, successor to the Kingdom of Serbia, formed a ''Small Entente'' loose union between Czechoslovakia, Romania and Yugoslavia.
[A]:
Which replaced the Kingdom of Serbia?