Final answer:
The passage from Animal Farm shows how oppression can make alternatives seem impossible by contrasting the animals' original goals with their current reality.
Step-by-step explanation:
The details that best support the theme that oppression can make alternatives seem impossible in the passage from Animal Farm are:
"This was not what they had aimed at when they had set themselves years ago to work for the overthrow of the human race."
"If she herself had had any picture of the future, it had been of a society of animals set free from hunger and the whip."
These details highlight the contrast between the animals' original goals and the reality of their current situation, where oppression and violence have replaced their vision of a liberated society.
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