Each member country of WTO must its laws and regulations and complete on the principle of

问题补充：

Each member country of WTO must its laws and regulations and complete on the principle of fairness and cooperation.

A. cater to

B. correspond to

C. relate to

D. submit to

答案：

A. cater to

(答案→)B. correspond to

C. relate to

D. submit to

解析：四个选项语义分别为迎合、契合、有关和顺从。从句子意思来说，只有选项C符合题意。