Question

Which closing uses correct punctuation?

Answer 1

B. is incorrect because in a conclusion it is always a comma not an ending punctuation. For example: Sincerely yours,

                                                      So and so.

C. is incorrect because it has no puncuation at all

D. is incorrect because it ends in an ending punctuation (a period)

So A. is your answer.

Answer 2

I think the answer is B