![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
What is the main idea of the passage?
A.
American firms' human resource management strategies affect their competitive capacity.
B.
Human-resource management is a key factor in a firm's survival.
C.
The cost of Work training in America is higher than that in Japan and Germany.
D.
American firms are different from Japanese and German firms in human-resource management.