355 A graduate student at Western University is conducting research on student exercise intensity. She gives a survey to students who are leaving the student recreation centre after working out. She asks each student to answer the question, "How tired do you feel as a result of your workout?" Students were instructed to reply using a scale from 1 (exhausted) to 4 (not tired at all). The graduate student oollected this data from 60 students. Her data are summarized in the table given to the right. Student Number of response students - Which of the following summaries (either numerical or graphical) is appropriate for the data the graduate student collected? A. histogram B. median C. pictogram D. boxplot