Gerrymandering combined with ethnicity for political use is done by creating ethnic districts, it ensures the candidates election by the district. Gerrymandering is the process <span>of redrawing legislative boundaries for the purpose of benefitting the political party in power.</span>
If you want to best predict the topics that might appear on a test, it is best that you use all the available sources, that is, that you use class discussions (inlcuding questions to the teacher), textbook and if you have access to, all previous assignments of the teacher.
So the best answer is: d. all of the above.
