Which of the following is false?

Which of the following is false?
A. 2-3 tree requires less storage than the BST
B. lookup in 2-3 tree is more efficient than in BST
C. 2-3 tree is shallower than BST
D. 2-3 tree is a balanced tree

Answer:
A. 2-3 tree requires less storage than the BST

Explanation:
Search is more efficient in the 2-3 tree than in BST. 2-3 tree is a balanced tree and performs efficient insertion and deletion and it is shallower than BST. But, 2-3 tree requires more storage than the BST.