Which of the following is an example of a representative sample?

	a.	Dr. Bruner samples the UA basketball team to report on the average height of UA students
	b.	Dr. Bruner randomly surveys students via email to report on UA student satisfaction with UA campus transportation
	c.	Dr. Bruner samples patients from UA Medical Center to report on satisfaction with U.S. Healthcare
	d.	Dr. Bruner samples faculty from the College of Education to report on the performance of President Bell