Which location did many families shelter in during air raids?

• A. Rooftops
• B. Underground stations
• C. Open fields
• D. Basements

Answer: (B)

During air raids, people needed protection from blast, heat, and flying debris, and in cities like London the Underground offered the strongest option. The deep tunnels and thick walls of underground stations shielded occupants from blast overpressure and collapsing building debris, and the network could accommodate thousands of families together, making it a practical and widely used shelter during the raids. Rooftops are exposed and dangerous, open fields leave people unprotected, and basements, while sheltered, were less reliable and could flood or be overcrowded. So the underground stations were the safest and most practical shelter choice during air raids.