<span>In the concentration camp, your ability to survive depends on your ability (or perceived ability) to work, and the young and old were killed off because they were considered unfit to work.
</span>There is your answer. :P
Something that would get in the way would be A. Obstacle.
Answer:
Napoleon gains power over the animals by two means. First, he twists the ideas of the animals' revolution to suggest that questioning his authority is tantamount to treason to Animal Farm, and the good of the whole. This is part of his larger strategy of manipulation of the truth. Squealer, his "propaganda minister," is especially adept at getting the animals to believe whatever is necessary to promote Napoleon's power. After Napoleon drives Snowball from the farm, for example, it is Squealer who convinces the animals that constructing the windmill was actually Napoleon's idea (even though Snowball had publicly endorsed it against Napoleon's wishes). He further suggests that Snowball, who had in fact fought bravely in the battles to establish Animal Farm, had in fact been in league with Jones, the farmer, the whole time. Snowball's ability to twist information is best exemplified by the winnowing down of the original Seven Commandments to one, which claims that while all animals are equal, some animals "are more equal than others."
The right answer is c. puck's mischievous personality is the source of almost all of the story confusion and humor
