
Passage: There are 6 pieces of blue and white porcelain: S, Y, M, Q, K, X. The age of each piece is different, and the exhibition is sorted from the earliest to the latest from left to right. The known conditions are as follows: (1) the age of M is earlier than that of X. (2) if the age of Y is earlier than that of M, then the age of Q is earlier than that of K and X. (3) if the age of M is earlier than that of Y, then the age of K is earlier than that of Q and X. (4) the age of S is either earlier than Y or M, and it can't have both.
Question: Which of the following options cannot be the earliest porcelain?
A. A.M.
B. B.Q.
C. C.S.
D. D.Y.
Answer: