单项选择题

Daughter: I can't hear you, Mum. It's a really bad line. Mother: Sorry, dear. I said how are you Daughter: Terrible, Mum. My back's killing me, and the house is a mess. Mother: ______ , darling. I'll come and help you clean the house.

A.Glad to hear it
B.Don't worry
C.Take your time
D.Take care