—Here are three books on history. Which one would you like to borrow?

—________. You see, I'm interested in geography these days. [ ]

A. All

B. None

C. Both

D. Each

下表中“农业生产三年三大步”得益于

A．大跃进

B．人民公社化

C． * *

D．家庭联产承包责任制