4
Answer: BSet 3: Inferences
Explanation
PASSAGE
A city installed mirrors in a crime-prone alleyway. Researchers found that incidents of vandalism and littering decreased by 40% over the following months. Similar results were observed when the mirrors were installed in other high-crime areas.
What can be inferred from the study?
A. Mirrors have no effect on human behavior.
B. Seeing their own reflection may make people more self-aware of their actions.✓ Correct
C. Crime only decreased because of increased police patrols.
D. The mirrors were too expensive to be practical.
Detailed Explanation
Mirrors reduced bad behavior—likely by making people see themselves, increasing self-awareness and accountability.
Key Evidence:
• "vandalism and littering decreased by 40%"
• "similar results in other areas"
Why others are wrong: A (40% decrease shows significant effect.), C (Police patrols aren't mentioned.), D (Cost isn't discussed.).