Which expression and justification completes the third step

Last updated: 7/26/2022

Which expression and justification completes the third step of her proof? (A) log, (b^(xy)); power rule of exponents (B) log,(b^(x-y)); subtraction property of exponents (C) log(b^(x+y)); power rule of exponents (D) log, (b^(x/y)), division property of exponents