In Hypothesis Testing, to What Does the Term "Critical Value

In hypothesis testing, to what does the term "critical value" refer?

A) the probability, 1 -, of avoiding the Type I error of erroneously rejecting a null hypothesis that is in fact true
B) the value of a test statistic that divides all possible values into an acceptance region and a rejection region
C) any sample result that leads to the continued acceptance of the null hypothesis because it has a high probability of occurring when the null hypothesis is true
D) the probability, 1 -, of avoiding the Type II error of erroneously accepting a null hypothesis that is in fact false