2-3 tree is a specific form of _________
A. B – tree
B. B+ – tree
C. AVL tree
D. Heap
The correct answer A. B – tree
The 2-3 trees is a balanced tree. It is a specific form the B – tree. It is B – tree of order 3, where every node can have two child subtrees and one key or 3 child subtrees and two keys.