The circumference of a circle is 10pi. Which of the following is not a possible value of the area of a rectangle inscribed in it?
A. 30
B. 40
C. 20\sqrt{2}
D. 30\sqrt{2}
E. 40\sqrt{2}
A. 30
B. 40
C. 20\sqrt{2}
D. 30\sqrt{2}
E. 40\sqrt{2}