In the figure above, SAND and SURF are squares, and O is the center of the circle. If Q is the sum of the areas of....

[Gmat_mission]

In the figure above, SAND and SURF are squares, and O is the center of the circle. If Q is the sum of the areas of squares SAND and SURF and C is the area of the circle, then the fraction C/Q is

(A) less than 5/8
(B) between 5/8 and 3/4
(C) between 3/4 and 7/8
(D) between 7/8 and 1
(E) greater 1

Answer: C

Source: Manhattan GMAT