which is the correct steps to follow to simplify an exponents using the quotient rule of integer exponets

A.check if the bases are different if so subtract the exponets of the numerator and denominator and write the resulting expression in exponential form
B. check if the bases are different if so subtract the exponets of the numerator and denominator (leave as is otherwise) and write the resulting expression in exponential form

B. check if the bases are different if so subtract the exponents of the numerator and denominator (leave as is otherwise) and write the resulting expression in exponential form