Answer:
The Southern colonies depended on slavery for their businesses while the North didn't need slaves and thought as them as actual people and not objects unlike the southerners
I believe the answer is: Ruling out rival hypotheses
Rival hypothesis refers to two possible alternatives to explain a certain occurrence which would contradict one another. Ruling out rival hypotheses is really crucial in order to improve internal validity of the result, and usually carried out by using control techniques (most important is random assignment).
It's mainly a matter of opinion, but I'd say no.
Answer: [C]: "Republican Party" .
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It helps a business owner because it help the flow of the company
