10) In studying the responses to a multiple-choice test question, the following sample data were obtained. We want to test the claim that all five responses occur with the same frequency. Find the critical value we would use to test the claim at the 0.05 significance level.
Response    A    B    C    D    E
Frequency  12   15  16   18  19

A) Critical value: X2 = 11.071
B) Critical value: X2 = 14.860
C) Critical value: X2 = 9.488.
D) Critical value: X2 = 11.143
E) Critical value: X2 = 1.875.