When the Hypotheses H₀ $\mu$ $\ge$ 100 and H_a $\mu$ < 100 Are Being Tested at a Level of Significance

When the hypotheses H₀: $\mu$ $\ge$ 100 and H_a: $\mu$ < 100 are being tested at a level of significance of $\alpha$ , the null hypothesis will be rejected if the test statistic z is

A) > z _$\alpha$
B) > -z _$\alpha$
C) < -z _$\alpha$
D) < 100