Which expression is equivalent to

Answer:
C
Step-by-step explanation:
You use the laws of exponents to solve for equivalence
b^5 - b ^2 = b^3 (When you're dividing exponents with the same base, you're subtracting)
(c^2)^3 is the power to product (When you have a power multiplied by a power you multiply the powers) 2 x 3 = 6 = > c^6
b^3c^6