Short Answer 
Oppression involves the unjust exercise of power by a dominant group over a marginalized group, resulting in deprivation and systemic bias. This creates a belief that alternatives are unattainable, as seen in examples where individuals resign to their circumstances, fearing a return to past oppressors.
Step 1: Understanding Oppression
Oppression refers to the unfair and malevolent use of power often justified by political authority or cultural disdain. It occurs when a dominant group enforces control over a marginalized group, leading to situations where the oppressed can’t envision alternatives. Some common characteristics of social oppression include:
- Deprivation: Withholding resources and opportunities.
- Class and Ethnicity: These characteristics significantly affect treatment and power dynamics.
- Systemic Oppression: Internal laws and processes unfairly favor certain social identities over others.
Step 2: Recognizing the Theme
The theme that oppression makes alternatives seem unattainable is evident in the context of a society facing unjust control. The examples highlight this theme by showing that when people are oppressed, they often feel that any changes are unfeasible. For instance:
- The belief that society was better off than in past oppressive times.
- The fear of returning to previous oppressors.
Step 3: Identifying Supporting Details
In addressing the query regarding which details from the text best support the theme of oppression, look for specific examples that illustrate resignation to the status quo. Two pertinent details are:
- “They were far better off than they had been in the days of Jones, and that before all else it was needful to prevent the return of the human beings.”
- “She would remain faithful, work hard, carry out the orders that were given to her and accept the leadership of Napoleon.”
These statements reflect how oppression limits perceptions of a better future.