i don't mind this empty room,and i like when i'm alone

问题描述:

i don't mind this empty room,and i like when i'm alone
I don't mind this empty room,and I like ______ when I'm alone.
A.that
B.one
C.it
D.what

选C 代指前句的房间 指物;that 没有此用法; one用于多个中比较;what 后一般是从句
谢谢