
Passage: A music producer is recording seven records one after another: F, G, H, J, K, L and M, but it doesn't have to be in this order. When arranging the recording order of these seven records, the following conditions must be met: (l) F must be in the second place. (2) J can not be ranked seventh. (3) G can neither be immediately in front of H nor immediately after H. (4) H must be somewhere in front of L. (5) L must be somewhere in front of M.
Question: If M is somewhere before J and before K, which of the followings must be true?
A. A.K is seventh
B. B.L is third
C. C.H is either immediately in front of F or immediately after F
D. D.L is either in front of G or immediately after G
Answer: