In a Wilcoxon Rank Sum Test,the Two Sample Sizes Are $\alpha$

Multiple Choice

In a Wilcoxon rank sum test,the two sample sizes are 4 and 6,and the value of the Wilcoxon test statistic is T = 20.If the test is a two-tail and the level of significance is $\alpha$ = 0.05,then:

A) the null hypothesis will be rejected.
B) the null hypothesis will not be rejected.
C) the alternative hypothesis will not be rejected.
D) not enough information has been given to answer this question.