Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
The last time he met his parents was one month ago.
A.He last met his parents since one month ago.
B.The last time he didn't meet his parents was one month ago.
C.It's one month since he hasn't met his parents.
D.He hasn't met his parents for one month.