1. B — Accountability for social and political choices
Why: The passage says calling the process “innovation” can hide accountability when bias or power concentration appears.
2. B — Incentives and power / not only algorithms
Why: Readers are asked to follow incentives, not only algorithms.
3. Model answer (accept equivalents)
Example: Data collection choices decide whose voices train the model. That is social and economic, not only mathematical, because unpaid or underpaid labeling labor and scraped content shape outcomes and risks.