Which of the following statements is false or true?

1. A full binary tree or a proper binary tree or a strictly binary tree is a binary tree in which each node other than the leaves has one or two children.

2. All complete binary trees are strictly binary trees, but all strictly binary trees are not complete binary trees.

A. Statement 1 is false.

B. Statement 2 is false.

C. Statements 1 and 2 both are false.

D. Statements 1 and 2 both are true.