Answer:
Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be "secondary source," since this would be analyzing something in the past.
I believe the correct answer is A.
<span>The Cherokees sided with the Confederates since they believed that the Confederacy would grant them more freedom. Since, slavery was legal in the Indian lands, some Native American slave owners wanted to help the Confederacy.</span>