Answer:
Option C.
Step-by-step explanation:
The given expression is c = 8πab
We have to solve this for the value of a
Dividing the expression by 8πb on both the sides.
[tex]\frac{c}{8\pi b}=\frac{8\pi a b}{8\pi b}[/tex]
[tex]a=\frac{c}{8\pi b}[/tex]
Therefore, Option C. will be the answer.
