Which of the following describes the roots of the polynomial function f(x)=(x-3)^4(x-6)^2?

A. –3 with multiplicity 2 and 6 with multiplicity 4

C. –3 with multiplicity 4 and 6 with multiplicity 2

E. 3 with multiplicity 2 and –6 with multiplicity 4

G. 3 with multiplicity 4 and –6 with multiplicity 2