Could you please solve the following questions for me?

[sky753]

Hi everyone,
could you solve the following two questions for me?
1.Can the phase "Never mind" or "It doesn't matter " be used to answer the question"DO you mind...?"
2.--Please don't make a noise.
---_______.I will be as quiet as a mouse.
A.Yes,I won't B.No,I won't C.No,I will D.Yes,I will

[Mister Micawber]

(1) 'It doesn't matter' could answer 'do you mind?' 'Never mind' sounds very strange.

(2) B. 'No, I won't.'