单选题：The inorder and the postorder traversal sequences of a binary tr

The inorder and the postorder traversal sequences of a binary tree are `a b c d e f g` and `a c b f g e d`, respectively. Then the preorder traversal sequences is: @[B](3)

A. `d b a c f e g`
B. `d b a c e g f`
C. `d a c b f e g`
D. `d c a b e g f`



A.`d b a c f e g`
B.`d b a c e g f`
C.`d a c b f e g`
D.`d c a b e g f`


答案：B