which exponent rules would be used to simplify this expression? 2x^5 ∙ 12x^-4

A. the negative exponenet rule
B. the quotient rule
C. the power to power rule
D. the product exponent rule

The exponent rules that would be used to simplify the expression 2x^5 ∙ 12x^-4 are:

D. the product exponent rule