Besides the Assumptions That Are Also Required for a One-Way

Besides the assumptions that are also required for a one-way ANOVA, the factorial ANOVA in your text also requires

A) the levels of both factors must be chosen by the experimenter rather than being chosen randomly from many possible levels
B) the number of scores in each cell must be equal
C) both of the descriptive alternatives are correct
D) neither of the descriptive alternatives is correct.