The Department of Education would like to test the hypothesis that the average debt load of graduating students with a Bachelor's degree is equal to $17,000. A random sample of 34 students had an average debt load of $18,200. It is believed that the population standard deviation for student debt load is $4,200. The Department of Education would like to set = 0.05. The critical value for this hypothesis test would be ________.

A. 1.96

B. 1.645

C. 2.33

D. 1.28