Radii of two spheres are 3 cm and 27 cm respectively. What is the ratio of surface area of the first sphere to the surface area of the second sphere?

**(A)** 1:9

**(B)** 1:27

**(C)** 1:16

**(D)** 1:18

**(E)** None of the above

Surface area of the first sphere

Surface area of the second sphere

**Ratio **

Hence, the answer is **(A)**.