Correct. The answer is c. To support his argument that “slaves, not politicians, became the most insistent force for emancipation,” the author cites the example that tens of thousands of slaves fled to Union lines during the first two years of the war, forcing northern leaders to formulate a policy about their proper legal status.
Incorrect. The answer is c. To support his argument that “slaves, not politicians became the most insistent force for emancipation,” the author cites the example that tens of thousands of slaves fled to Union lines during the first two years of the war, forcing northern leaders to formulate a policy about their proper legal status.