Answer:
C. A secondary source summarizes large amount of evidence is the correct answer.
Step-by-step explanation:
The documents and artifacts which are created by the witness or participant of the event is known as primary source. They are evidence created during the time period which we are studying. Diaries, newspaper articles, government documents etc are primary sources. The secondary sources are created by the people who did not experience of participate in the events, for research projects the secondary sources are scholarly books and articles. secondary sources are more helpful than primary sources because they summarize large amount off evidence.