Answer:
B. They took advantage of the political and economic chaos in the South after the Civil War
Explanation:
The Carpetbaggers were people that were very disliked among the population in the South. The main reason for this was that they were people that used the chaos in the South after the Civil War in their advantage, often damaging the local population. These people were getting themselves in positions from which they can use political and economic chaos, thus getting a lot on the expense of the Southerners who worked hard for it.
If I were you I would talk to my teacher about it. There is nothing that can be answered because there is no context