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.

Let me give you an example: Article: There are a lot of public libraries in Britain. These libraries have more than one hundred and fifteen million books, not including those libraries of public schools. Public libraries not only lend books, music records but also help children, patients in hospitals and others to get special play readings, film shows and so on. The first public libraries were founded in about the year 1850. Today's public libraries usually have a reading-room, a lending room and a reference room. The greatest and most famous library in Britain is that of the British Library in London. It was founded in 1973 and has over 10, 000, 000 books. It has nearly every magazine, newspaper and book published in Britain and other parts across the world.
Answer: 10,000,000 or less.
The answer to this example can be: How many books are there in the British Library?
Here is why: In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

OK. solve this:
Article: More men are finding their calling as nurses. A new study from the United States Census Bureau reports the number of male nurses has doubled since the l970s.Back then,about 2.7 percent of registered nurses were men.The new study,which tracked data through 2011,finds that men now make up 9.6 percent of all employed nurses in the United States about 330,000 men in total.Recent years of shortages have led to increased efforts,according to report,which included recruiting men into the field. Men,in fact,had been largely kept out of nursing in past decades because nursing schools often refused to admit men.The Supreme Court ruled that practice unconstitutional in l981 after a case involving a state nursing school. "The ly high wages and expanding Job opportunities makes this field attractive,offering stability even during recessions ,"wrote the report's author,Liana Christin Landivar of the U.S.Census Bureau,"And because of high demand,nursing has low unemployment rates compared to other fields.'' Men were found to be more likely to become nurse anesthetists ,which is the highest paid nursing occupation,and were found least likely to become licensed practical or licensed vocational nurses,the lowest paid types of nursin9.Nurse anesthetists are required to get graduate education,and are certified to give anesthetists and monitor patients recovering from anesthesia.1Acensed practical and licensed vocational nurses provide patient care and may work under the supervision of a registered nurse.Registered nurses assess patient health problems and needs,develop and carry Out nursing care plans,maintain medical records,and administer care. For all types of nursing,men earned,on average,$60,700 per year,while women earned$51,100 per year."Even among men and women in the same nursing occupations,men outlearn women,"wrote Landivar.
Answer: About 2.7%of registered nurses were men.
Answer:
Which of the following is true about nurses in the US in the l 970s?