B+ Trees are considered **BALANCED** because (A) the lengths of the paths from the root to all leaf nodes are all equal. (B) the lengths of the paths from the root to all leaf nodes differ from each other by at most 1. (C) the number of children of any two non-leaf sibling nodes differ by at most 1. (D) the number of records in any two leaf nodes differ by at most 1.

By definition, a $\text{B}^+$ tree is perfectly height-balanced, which means all leaf nodes appear at the exact same depth from the root. Consequently, the length of the path from the root to any leaf node is identical for all leaf nodes.

• (A) is correct because all leaf nodes are at the exact same level.

• (B) describes AVL tree height-balance property across subtrees, not the strict height-balance of $\text{B}/\text{B}^+$ trees where leaf depths differ by $0$.

• (C) and (D) are incorrect properties and do not define the balanced nature of $\text{B}^+$ trees.