A team of researchers investigating thirst motivation has a group of people log the type and amount of everything they drink for a week. They then categorize the drinks as water, dairy, fruit juice, soda, alcohol, or other. They plan to test every possible pair of categories in an effort to rank order (with ties) the categories. What approach would generally be considered most appropriate? a. An omnibus ANOVA test b. A Tukey post hoc test c. An omnibus ANOVA test followed by a Tukey post hoc test if the ANOVA is statistically significant d. Planned comparisons with no correction for familywise error