Question: Consider a completely randomized design with 5 treatments, A, B, C, D, and E. The ANOVA F-test revealed significant differences among the means. A multiple comparisons procedure was used to compare all possible pairs of treatment means at α = .05. The ranking of the 5 treatment means is summarized below. Identify which pairs of means are significantly different.

a.) A C E B D

b.) A C E B D

c.) A C E B D

d.) A C E B D