A Ball Is Attached to an Ideal Spring and Oscillates $\sqrt { 2 }$

Multiple Choice

A ball is attached to an ideal spring and oscillates with a period T.If the mass of the ball is doubled,what is the new period?

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