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Passage: Flash floods triggered by monsoon rains regularly displace thousands of families in low-lying areas, overwhelming local disaster response teams. Early warning systems, when functioning properly, can give residents crucial hours to evacuate, yet many villages still lack access to timely alerts. Disaster management officials say investing in community-based warning networks could dramatically reduce casualties in future floods. Question: According to the passage, what can early warning systems provide?
A. Free housing for displaced families
B. Crucial hours for residents to evacuate ✅
C. Permanent flood prevention
D. Immediate rainfall reduction
