Lee Harvey Oswald
According to Wikipedia and History.com
Five government investigations concluded that Oswald shot and killed Kennedy from the sixth floor of the Texas School Book Depository
Answer:
Any subject of study needs justification: its advocates must explain why it is worth ... In the past history has been justified for reasons we would no longer accept. ... History should be studied because it is essential to individuals and to society, and ... Only through studying history can we grasp how things change
Explanation:
The answer is B since Lincoln thought slavery in general was “unjust” and wanted it abolished as well as many African Americans served for the union
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