A coed soccer team has W women and M men on the team. If 4 women and 2 men are added to the team roster, and if one person on the team is selected at random to serve as team captain, then the probability that the team captain will be a woman can be represented as （）.

A.A

B.B

C.C

D.D

E.E

客户关系管理系统主要包括()。

A.客户数据管理系统

B.客户档案管理系统

C.客户识别管理系统

D.重点客户管理系统

E.客户流失预警系统