Six Basic Colors Are Used in Decorating a New Condominium

Multiple Choice

Six basic colors are used in decorating a new condominium. They are applied to a unit in groups of four colors. One unit might have gold as the principal color, blue as a complementary color, red as the accent color and touches of white. Another unit might have blue as the principal color, white as the complimentary color, gold as the accent color and touches of red. If repetitions are permitted, how many different units can be decorated?

A) 7,825
B) 25
C) 125
D) 1,296