A drug for treating depression patients is evaluated for effectiveness. Three treatment options exist: 20 mg, 10 mg, and placebo (20, 10, P). Twelve patients are randomly assigned to provide 4 patients for each level. The change in score from a common test designed to quantify depression was recorded for each patient. The ANOVA summary from the test appears below: Source df SS MS F P Factor 2 228.17 114.08 34.81 0.000 Error 9 29.50 3.28 Total 11 257.67 Does it appear that the drug might be effective in changing depression level? Select the appropriate conclusion and reasoning. ( a) No, the drug does not appear to have an effect on depression level because the p-value is essentially zero. ( b) Yes, the drug (or perhaps the placebo) appears to have an effect on depression level because the p-value is essentially zero. (c) The test is inconclusive and needs a multiple comparison of means procedure to be able to make any statement concerning the relationship between the drug/placebo and depression. ( d) No, the drug does not appear to have an effect on depression level because the test statistic is so large