Index ages for the survey are (OR) the age groups recommended in the national pathfinder survey are: (A) 5, 15, 25, 35, 65 to 70 years, (B) 5, 10,15,30,60 to 70 years, (C) 5, 12, 15, 35 to 44 and 65 to 74 years, (D) 5 to 10, 15 to 35, 40 to 65 years
Answer is C. None