根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。(选项中有一项为多余选项)

Hello. My name is Selina. I'm an English girl. I'm a salesgirl at Mr. Cool's Clothes Store.

We have shorts in black and white for 5 dollars. The blue shirts are 7 dollars. The black shirts are also 7 dollars. For boys, we have white socks. We also sell black shoes for only 8 dollars.

A. The white shirts are on sale for 4 dollars.

B. A pair of white socks is only 1 dollar.

C. We sell all clothes at very good prices.

D. We have shorts in all colors.

E. We have shirts in blue, black and white.

F. Come and buy your clothes, at Mr. Cool's Clothes Store.