Rebecca makes an A in a 4-credit math course , a B in a 3-credit English course, a C in a 3-credit science course, a B in the associated 1-credit science lab, and an A in a 4-credit Spanish course. What would Rebecca's average be if you ignore the credits and just average the five grades? A. 1.067 B. 3.2 C. 3.333 D. 6.667