Six persons A, B, C, D, E and F live on six different floors of a building. The ground floor is numbered 1, the floor above it is numbered 2 and so on. C lives on the floor immediately below the floor of A. E lives on the floor immediately below the floor of D. Three persons live between the floors of F and E. B does not live on the topmost floor. A does not live on any of the floors below D. E and F live on even-numbered floors. Who lives on the 5th floor?