Two Identical Stones Are Dropped from Rest and Feel No

Multiple Choice

Two identical stones are dropped from rest and feel no air resistance as they fall.Stone A is dropped from height h,and stone B is dropped from height 2h.If stone A takes time t to reach the ground,stone B will take time

A) 4t.
B) 2t.
C) t .
D) t/ .
E) t/2.