Which of the following would a historian use to get a firsthand account of a past event?
a. a chronological source
b. a secondary source
c. a narrative source
d. a primary source

the correct answer is d

true

explanation:

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.