In general, using the Bonferroni procedure as a post-hoc comparison procedure means that
a) important interactions would be overlooked in fewer studies
b) the .05 alpha will be divided into such small parts that finding any significants comparisons will be a long shot.
c) fewer subjects will be required per group to detect significants results.
d) an overall .10 significance level will guarantee that each comparison can be conducted at the .05 level.