A Random Sample of 12 Men and 12 Women Were $\pm$

A random sample of 12 men and 12 women were asked to report the number of hours they watched television on a Wednesday evening. If a researcher wants to test the hypothesis that there is no difference in the amount of time spent watching television based on gender, what z-values should be used for a two-tailed Wilcoxon rank sum test, at α = 0.05?

A) z = $\pm$ 1.96
B) z = $\pm$ 2.00
C) z = $\pm$ 1.67
D) z = $\pm$ 3.00