单项选择题

Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
Now listen to the conversation.

What colors do employers prefer that their young executives wear

A.Red and white suits for men.
B.Red and yellow skirts for women.
C.Gray, black and dark blue suits for men.
D.Black and white dresses for women.