单选题：Which one of the following statement is FALSE about a tree?
Which one of the following statement is FALSE about a tree?
A.When converting a tree into a binary tree using FirstChild-NextSibling representation, the root of the binary tree must be of degree 1.
B.Every node in a nonempty tree is the root of some subtree.
C.The degree of a tree is equal to the depth of the tree.
D.Sibling nodes share the same parent.
答案：C
A.When converting a tree into a binary tree using FirstChild-NextSibling representation, the root of the binary tree must be of degree 1.
B.Every node in a nonempty tree is the root of some subtree.
C.The degree of a tree is equal to the depth of the tree.
D.Sibling nodes share the same parent.
答案：C
