This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and health, Subject name: Social & Preventive Medicine
[{'content': 'The optimum floor space recommended for a adult person in a house is \nSelect and explain. \nA. 70 to 90 sq.ft, B. 101 to 150 sq.ft, C. 151 to 200 sq.ft, D. 201 to 250 sq.ft', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The accepted standards are:110sq ft or more : 2 persons90-100 sq ft : 1 1/2 person70- 90 sq ft : 1 person50-70 sq ft : 1/2 personUnder 50 sq ft : nilA baby under 12 months is not counted; children between 1 to 10 years counted as half a unit.Park 23e pg: 752', 'role': 'assistant'}]