-i'm sorry but i can't give you any help,though i'd love to.

问题描述:

-i'm sorry but i can't give you any help,though i'd love to.
-that's OK.__.
A.It doesn't matter B.I don't care 选哪一个?为什么?
但是应该怎样填

A是没关系的意思B是我不在乎·