The neighbor has to be the antagonist, because the protagonist loved his dog very much and his neighbor killed his dog, the protagonist even called his neighbor evil, so I would go with C, the neighbor.
The second answer is the closest.
The line from the fireside chat that is the best example of president roosevelt's addressing the concerns of the audiences would be : unemployment remains a serious problem
The audiences of fireside chat is the common people during the great depression, so the concern of most of the audience would be unemployment
hope this helps
Answer:
The main idea that is NOT stated on the text