Final answer:
Tampering with elections by changing vote counts is known as electoral fraud, not to be confused with gerrymandering, which involves redrawing districts to favor a party.
Step-by-step explanation:
When an election is tampered with, by either increasing the number of votes for one candidate or decreasing the number for another, this is known as C. Electoral fraud. Gerrymandering is a related but distinct practice, which involves drawing electoral district boundaries to favor a certain political party or group, without necessarily tampering with the actual vote count. Tampering directly with votes to fraudulently alter the election result fits the definition of electoral fraud. An example of gerrymandering would be manipulating district lines so that a small number of minority voters are placed in each of several districts, diluting their potential impact, or creating districts that are so safe for incumbents that they almost guarantee non-competitive general elections.