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A
Community gardens are expensive to maintain
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B
The community garden improved both physical safety and community engagement in the neighborhood
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C
The vacant lot was the primary cause of all crime in the city
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D
Gardens always reduce crime
Why this is the answer
INFERENCE questions require drawing a reasonable conclusion supported by the passage. The passage provides specific evidence: litter area → family gathering place (physical improvement); 18% crime reduction (safety improvement); new association members (community engagement improvement). The INFERENCE is that the garden improved both safety AND community engagement — this is directly supported by the two distinct sets of evidence (crime stats + association membership). Option A (expensive maintenance) — not mentioned at all; inference not supported. Option C (primary cause of all crime) — far too strong; the passage mentions three blocks and one lot, not 'all crime in the city.' Option D (gardens always reduce crime) — the passage describes one instance; inferring a universal rule from one example is logically unsound and goes beyond the evidence. Good inferences are BOUNDED by what the passage actually supports — strong enough to conclude but not so strong they exceed the evidence.
Source: ASVAB PC, Inference