Which of the Following Statements Regarding the Chi-Squared Distribution Is $\chi$

Multiple Choice

Which of the following statements regarding the chi-squared distribution is true?

A) The chi-squared distribution is skewed to the right.
B) All values of the chi-squared distribution are greater than or equal to zero.
C) The critical region for a goodness-of-fit test with k categories is $\chi$ ² > $\chi$ ² _{$\alpha$ ,k-1},where $\chi$ ² is the value of the test statistic.
D) All of these choices are true.