将下列对话按正确的顺序排列。

a: It's Around China.

b: What do you usually do on weekends?

c. How often do you watch this program?

d: What's your favorite program?

e: I usually watch TV.

f: Every Friday evening. I love that program.

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如图所示，贮水器的壁面上有四个盖子，直径均相等，其中盖子1、4为半球形，盖子2、3为平底，则所受到的静水总压力最大的盖子为（）。

A.盖子1

B.盖子2

C.盖子3

D.盖子4