In the diagram, two circles overlap. The area of the overlapped region is \frac{3}{5} of the area of the small circle and \frac{6}{25} of the area of the large circle. The ratio of the area of the small circle to the area of the large circle is
Answer Choices
A. 18: 125
B. 1: 3
C. 5: 12
D. 2: 5
E. 1: 4