Answer:
The correct option is A: Wasted votes
Step-by-step explanation:
Gerrymandering is always carried out when there is a plan to achieve an unfair political advantage for a specific group or party over others. This is usually done by ensuring district boundaries are manipulated as used in the "first-past-the-post electoral systems". Wasted votes strategy is used to increase the number of wasted votes of a group or political party, while decreasing the number of wasted votes of another. It is used as the premise of the gap measure in efficiency of gerrymandering.