Answer:
a. The way votes are tallied can significantly alter the outcome
Explanation:
According to Arrow's Impossibility Theorem, there are three possibilities:
1. in case each voter prefers alternative X over alternative Y, it means the group prefers X over Y;
2. in case each voter's preference between X and Y remains unchanged, it means the group's preference between X and Y will also remain unchanged;
3. in case no single voter has got the power to always fix the group's preference, it means there is no dictator.
In making decision, election is not a perfect means since the way votes are calculated there is a room for discrepancy.
