Question

1. what is most likely the authors purpose for using an advantages-and disadvantages organizational structure in paragraphs 10 and 11?

to present the conveniences and the drawbacks native peoples experienced along the fall line
to describe why the fa attracted settlers for hundreds of years
to explain both the benefits and the obstacles people experienced living along the fall line
to show how the fall line created a natural separation for different groups of people

Explanation:

An advantages - disadvantages structure is used to show both positive (benefits) and negative (obstacles) aspects. The first option focuses only on native peoples, while the question is about the author's purpose for the structure in general. The second option is about why it attracted settlers, not about advantages and disadvantages. The fourth option is about separation, not related to advantages - disadvantages. The third option correctly states that the structure is to explain both benefits and obstacles people experienced living along the fall line.

Answer:

C. To explain both the benefits and the obstacles people experienced living along the fall line (assuming the third option is labeled C; if the original labels were different, adjust accordingly based on the option order: the third option in the list which is "To explain both the benefits and the obstacles people experienced living along the fall line")