Six person namely – A, B, C, D, E and F lives in six floored building marked 1 to 6 in such a way that the lowermost floor is marked as 1, floor above is marked as 2 and so on till topmost floor marked as 6. Age of each person is different viz 32, 42, 48, 52, 54 and 64 years. The one whose age is 54 years sits at floor marked 2 at a gap of two floors from A, whose age is 52 years. B lives on odd numbered floor at a gap of two floors from E and E's age 48 years, then how many person lives below the one whose age is 64 years?

I. C whose age is 32 years lives on even numbered floor at a gap of two floors from D. The one whose age is 42 years lives on any floor above D.

II. One person lives between the one whose age is 42 years and D, who lives on odd numbered floor. C lives on a floor exactly between A and B.

III. The one whose age is 32 years lives at a gap of one floor from F, whose age is neither 42 years nor lives on an odd-numbered floor. 

Which of the following statement is required to answer the above question?