The ideal floor area per person is:

Correct option is B

Answer: (b) 100 square feet
Explanation: The recommended minimum floor area per person varies depending on the country and urban planning standards. However, 100 square feet (approximately 9.3 square meters) per person is commonly considered an adequate living space, ensuring proper ventilation, movement, and comfort.
Evaluation of the Options:
· (a) 130 square feet: Slightly higher than the general minimum requirement but can be considered comfortable.
· (b) 100 square feet: Falls within the standard recommendations and is widely accepted.
· (c) 220 square feet: This is more than the usual requirement for basic living conditions.
· (d) 50 square feet: Considered insufficient for comfortable living, leading to overcrowding and poor hygiene.
Thus, the correct answer is 100 square feet per person as the ideal minimum floor area.