单项选择题

[听力原文]
W: John, will you be able m get home at 6:00
M: No way. Don’t you know I’m busy working

What does the man mean()

A.He can’t find his way home.
B.He doesn’t know when he will be hack.
C.The traffic will be blocked then.
D.He won’t be back home at 6:00.