A Study About the College Aptitude of Seniors at South $\pm 1.96$

A study about the college aptitude of seniors at South City High School has resulted in a sample mean with a corresponding z-score of +1.89.If the critical value for the region of rejection is $\pm 1.96$ , what is the correct conclusion?

A) Since the z-value falls within the region of rejection, we should conclude this sample mean likely represents some other population.
B) Since the z-value does not fall within the region of rejection, we should not conclude this sample mean represents some other population.
C) Since the z-value falls within the region of rejection, we should not conclude this sample mean represents some other population.
D) Since the z-value does not fall within the region of rejection, we should conclude this sample mean likely represents some other population.