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What is the minimum width required for a door in a residential building?

  1. 0.8 meters

  2. 0.9 meters

  3. 1.0 meter

  4. 1.1 meters

The correct answer is: 0.9 meters

The correct minimum width required for a door in a residential building is 0.9 meters. This is because building codes and safety regulations typically mandate a minimum width of 0.9 meters for a door to allow for easy accessibility and evacuation in case of emergencies. Option A is too narrow and may not meet these requirements. Option C and D are wider than the recommended minimum and may not be necessary.