Answer:
Area of sphere is given by [tex]4\cdot \pi\cdot r^2[/tex]
Step-by-step explanation:
The surface area of sphere is given by:
[tex]\text{Area of sphere}=4\cdot \pi\cdot r^2[/tex]
Option C and D are correct but [tex]\pi[/tex] is missing in the options
Option A and B are incorrect.
[tex]\pi=3.14[/tex] to solve the area of sphere when radius is given a constant value.