Jenn Earned a 72 on Her First Psychology Exam,a 70

Multiple Choice

Jenn earned a 72 on her first psychology exam,a 70 on the second exam,and a 71 on the third exam.What can be said about her exam scores?

A) They are a reliable representation of her performance in the class.
B) She needs to take more exams in order to determine a reliable idea of her class performance.
C) They do not represent her class performance.
D) They demonstrate variations in variability and reliability.