The diameters of two spheres are in the ratio 1:2 what is the ratio of their surface area? Select the correct option.
A) 1:1
B) 1:9
C) 1:3
D) 1:4
E) 1:3
1:4   Answer: 1:4
<result>D</result>
The diameters of two spheres are in the ratio 1:2 what is the ratio of their surface area?