Which of the Following Statements Is False

Which of the following statements is false?

A) We can conduct nonparametric tests even with nominal and ordinal data.
B) When parametric assumptions are valid and, therefore, either type of test could be used. Nonparametric tests are less powerful than parametric tests.
C) Given sample size and specified significance level, the probability of a Type II erroris larger for a nonparametric test.
D) Using a nonparametric test when we could employ a parametric test can be less efficient: A nonparametric test often tends to ignore available sample information-for example, by focusing only on the directions rather than the sizes of observed differences.
E) None of these.