The scenario described relates to (B) accuracy.
Accuracy refers to how close a measurement or statement is to the true value or reality. In this case, the university's policy of not allowing students with a criminal record to register reflects an accurate application of that policy regarding the student's prior conviction. If the student's conviction is indeed a factor that justifies her ineligibility, then the decision made by the university is accurate based on the information provided.
Precision, on the other hand, would refer to the consistency of a measure or statement, irrespective of its correctness. In this context, the example focuses more on the correctness of the application of the policy rather than the consistency of its implementation.