Please answer this question

In studying the occurrence of genetic characteristics, the following sample data were obtained. At the 0.05 significance level, find the critical value that would be used to test the claim that the characteristics occur with the same frequency. Characteristic A B C D E F Frequency 28 30 45 48 38 39 O Critical value: x2 = 12.833. O Critical value: x2 = 12.592. O Critical value: x2 = 11.071. O Critical value: x2 = 11.143 O Critical value: x2 = 9.488