Some people prefer to work and live in Chengdu for the price of an apartment is less than

问题补充：

Some people prefer to work and live in Chengdu, for the price of an apartment is less than half of of big cities like Beijing, Shanghai, and Guangzhou.

A. it

B. what

C. that

D. One

答案：

A. it

B. what

(答案→)C. that

D. One

解析：考查代词。句中that指代前面的the price，指代不可数名词，故选C。