With the Wilcoxon Rank-Sum Test, What Is Done in the Case

Multiple Choice

With the Wilcoxon rank-sum test, what is done in the case of equal values?

A) As the data are from a continuous distribution, this will never happen.
B) The observations are assigned the mean rank for their positions in the ordered list.
C) The observations are thrown out and not considered in the analysis.
D) The equal values are arbitrarily assigned an appropriate rank in sequence.