C it’s what I chose for it
It is C because 4 pi r^2 is the surface area equation. 4 times 6 squared= 144. 144pi = surface area.
The equation is given below as

Recall that

Therefore, equating the two-equation, we will have

cross multiply, we will have

Therefore,
we will get the arc sign of both sides in radians to get

In radians, the final answer will be

Therefore,
The finals answers are OPTION A and OPTION D
The 5 at the end needs to be another circle with 4 in it
Then 1 needs to be by its self because 21 divided by 4 =5 with 1 remainder