Historians study cause and effect in order to . A.plan student action projects in a community

B.add an event to their calendar

C.understand why an event occurred

D.maximize their return on an investment in stocks

B

Explanation:

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Du Bois believed activism was necessary to achieve equality.

Du Bois felt that African Americans were still facing discrimination.

Washington viewed the legacy of slavery as a benefit.

Washington believed that equality would eventually occur.

Both men believed slavery was a moral wrong.