Pedro used the graph below to record that the number of students going to his school during the last seven months is decreasing.Which of the following reasons describes why his report is defective?A.] He should have used a circle graph to present the information.B.] The data should only show the months in which the number of students is different.C.] He should have represented the number of students on the vertical axis to show its variation over time.D.] The data shows that the number of students going to his school increased over that period of time.