The diameters of two spheres are in the ratio 1:2 what is the ratio of their volumes?
Choose the correct option:
A) 1:9	B) 1:2	C) 1:8	D) 1:1	E) 1:6
1:8   Answer:1:8
<result>C</result>
The diameters of two spheres are in the ratio 1:2 what is the ratio of their volumes?