Which statement best explains why historians use a variety of sources when exploring past events? A. They want to discover how historical figures reacted to events.
B. They must use sources that were created in the time period they are studying.
C. They must study and approve of the viewpoints of historical figures.
D. They need to learn about and confirm the truth of details about the past.

D is the correct answer.

The first two are wrong because the historian's job is to find out what happened and why and how etc not to find out what some old rulers face looked like when they saw that the won the war. You can study with primary or secondary sources as long as the are credible and reliable.

They don't need to approve of some dead guys viewpoint.

D is the answer.

Explanation:

Trust me I have lots of education!

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the answer is the letter b governor of new mexico territory

i would go with the last one