Final answer:
To find a sample that accurately represents the Midwest's views on gun control, Corinne should choose a sample of people from the same state.
Step-by-step explanation:
The best way for Corinne to find a sample that BEST represents the Midwest in relation to the topic of gun control is to choose a sample of people from the same state (option C). This is because the Midwest region consists of several states, and selecting subjects from one specific state would provide a more accurate representation of the region's views on gun control.