Two Simple Pendulums,A and B,are Each 3 $\sqrt { 2 }$

Two simple pendulums,A and B,are each 3.0 m long,and the period of pendulum A is T.Pendulum A is twice as heavy as pendulum B.What is the period of pendulum B?

A) T/ $\sqrt { 2 }$
B) T
C) T $\sqrt { 2 }$
D) 2T
E) T/2