What is the diameter of a circle whose area is A?
(A)\(2\sqrt { \frac { A } { \pi } } \) (B)\(\sqrt { \frac { A } { \pi } } \) (C)\(\frac { A } { 2\pi } \) (D)\(\frac { A } { \pi } \) (E)\(\frac { 2\sqrt { A } } { \pi } \)
A