A Professional Organization Is Attempting to Determine Whether Salaries of Hospital

A professional organization is attempting to determine whether salaries of hospital CFOs differ by geographical region. Five hospital CFOs were randomly selected from each of the following four regions of the United States: East, Midwest, South, and West. Each CFO was then asked his or her annual salary. The salary distributions were highly skewed. The table below summarizes the results of the Kruskal-Wallis test obtained from MegaStat/Excel. Kruskal-Wallis Test
At a significance level of .05, the rejection point condition for the hypothesis test is

A) reject H₀ if χ² > 9.3484.
B) reject H₀ if χ² > 30.1435.
C) reject H₀ if χ² > 7.81473.
D) reject H₀ if χ² > .341846.
E) reject H₀ if χ² > 32.8523.