The optimum floor space recommended per adult person in a house: (A) 101–150 sq.ft., (B) 70–90 sq. ft., (C) 151–200 sq.ft., (D) 201–250 sq. ft.
Answer is B. Optimum floor space recommended per adult person in a house: 70 – 90 sq.ft. (7 – 9 sq.m.)