GMAT Problem Solving (PS) | Re: Let A denote the area of a circular region. Which of the following

Let A denote the area of a circular region. Which of the following denotes the circumference of that circular region?

(A)\(\sqrt{\frac{A}{\pi}}\)

(B)\(2\frac{A}{\sqrt{\pi}}\)

(C)\(2\pi \sqrt{A}\)

(D)\(2\sqrt{\frac{A}{\pi}}\)

(E)\(2\pi \sqrt{\frac{A}{\pi}}\)