Should be A.
SOLUTION:
Well we can just simplify the exponents for all of them:
A. (3/5)^3, simplify it becomes:
3^3 / 5^3 = 27/125
B. 3 / 5^3.
This becomes 3 / 125.
C. (3/4)^2.
Simplified: 3^2 / 4^2 = 9 / 16.
D. 3^3 / 5^5 = 27/ 3125.
