Is Option A or Option B the correct simplified expression of (4x3)3 using the properties of integer exponents?

Option A: 4x9
Option B: 64x9

Enter 1 for Option A or 2 for Option B.(1 point)

The correct simplified expression of (4x^3)^3 using the properties of integer exponents is Option B: 64x^9.

So the answer is 2.