A student in 2013 is researching John F. Kennedy, who served as U.S. president from 1961 to 1963. Which of the following is an example of a primary source the student might consult during her research?
A.A textbook published in 2000 about 20th-century presidents' accomplishments
B.A magazine article honoring the 50th anniversary of John F. Kennedy's death
C.An online encyclopedia entry about John F. Kennedy's major accomplishments
D.A recorded interview with John F. Kennedy on the day he was elected president
