Factor this polynomial expression. 3x^2 - 12x+ 12

A. 3(x-2)(x+2)
B. 3(x-2)(x-2)
C. 3(x+ 2)(x+2)
D. (3x-2)(x-6)

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint