In Which of the Following Situations Should a Wilcoxon Signed-Rank

Multiple Choice

In which of the following situations should a Wilcoxon signed-rank test be used?

A) When matched data is normally distributed and ranked
B) When observations are non-independent and the data are skewed
C) When you wanted to use an independent samples t-test but the data ends up being heavily skewed.
D) When the sample size is very large and on a ratio scale.