English Language · English
Based on the passage regarding subway health hazards, what is the most practical and systemic way to reduce the health risks of subway environments for all commuters?
- 1Mandating that all passengers wear heavy-duty face masks during journeys
- 2Encouraging commuters to opt for personal vehicles instead of public transit
- 3Completely banning subway commutation during peak hours
- 4Installing advanced ventilation and air filtration systems in underground stations✓
Correct answer
Installing advanced ventilation and air filtration systems in underground stations
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