英语选择题hank you for all your help.You’ve been very kind.------

英语选择题hank you for all your help.You’ve been very kind.__________.You’ll be better soon.
A.That’s nothing serious.B.Don’t mention it.
B.Everything will be OK.D.Don’t worry about it.
是A还是B呢。Don’t mention it.不是没关系的意思，别人表示感谢时用的吗？