B. By simplifying 9 to to make both powers base three and subtracting the exponents
Step-by-step explanation:
When you have a division the quotient of powers property states that the exponents should be substracted, and by simplifying 9 to you end up with an equation like this:
=
Then you just have to substract the exponent from the denominator from the numerator´s exponent, which would be: