单选题：Given the popping sequence of a stack as {a, b, c, d, e}. Among

Given the popping sequence of a stack as {a, b, c, d, e}. Among the following, the impossible pushing sequence is: @[B](2)

A. c b a e d
B. d e a c b
C. e a b c d
D. e d a b c




A.c b a e d
B.d e a c b
C.e a b c d
D.e d a b c


答案：B