答案及解析：[单选题]When atempting to delete a node v of degree 2, what's the actual node being deleted? 当欲删除的节点v在

问题：

[单选题]When atempting to delete a node v of degree 2, what's the actual node being deleted? 当欲删除的节点v在BST中的度为2时，实际被删除的节点为：
Av's direct predecessor in the in-order sequence v在中序遍历下的直接前驱
Bv's direct successor in the pre-order sequence v在先序遍历下的直接后继
Cthe last node in the left branch of v's right sub-tree v的右子树中左侧分支的最后一个节点
Dv's parent v的父亲