A One-Tailed Test to Test the Null Hypothesis H_o $\le$ M_C Where C Is Some Specific Constant, Could Be Carried

A one-tailed test to test the null hypothesis H_o : m $\le$ m_C where C is some specific constant, could be carried out by comparing the calculated z value with the area under the curve (in the graph below) designated by___ .

A) C
B) B
C) A
D) AB
E) None of the above