问题详情

Why was unemployment in the United States lower than in Western Europe？

A．Because the economy was more developed in the United States than in Western Europe.

B．Because it"s easier to employ workers in the United States.

C．Because the flexible American system generated more job opportunities.

D．Because America put more effort into creating new jobs.

请帮忙给出正确答案和分析，谢谢！