Which one of the following statements is false a A full bina

Which one of the following statements is false?

a) A full binary tree has an even number of vertices.
b) A binary tree is an m-ary with m = 2.
c) In an m-ary tree, each internal vertex has at most m children.
d) In a full m-ary tree, each internal vertex has exactly m children.

d) In a full m-ary tree, each internal vertex has exactly m children.is false answer