Mother’s love is true love! She’s never stopped loving you______you become or you do．

A．whichever

B．however

C．whatever

D．whoever

己知一棵二叉树前序遍历和中序遍历分别为ABDEGCFH和DBGEACHF，则该二叉树的后序遍历为( )。

A．GEDHFBCA

B．DGEBHFCA

C．ABCDEFGH

D．ACBFEDHG