In a Wilcoxon Signed Rank Sum Test, the Test Statistic $D \neq 0$

Multiple Choice

In a Wilcoxon signed rank sum test, the test statistic is calculated as T = 45. The alternative hypothesis is stated as: The location of population 1 is different from the location of population 2. If there are n = 15 observations for which $D \neq 0$ , and the 5% significance level is used, then:

A) the null hypothesis will be rejected.
B) the null hypothesis will not be rejected.
C) the test results are inconclusive.
D) the normal approximation must be used.