You're not dumb, it's just a small matter of learning.
First, we have to solve the exponents by multiplying them to their exponents.
3^4 = 3 x 3 x 3 x 3
3^4 = 81
3^2 = 3 x 3
3^2 = 9
Therefore, our new fraction is 81/9.
Lastly, we just need to simplify it.
81/9 = 9
That means your answer would be B.