Six boxes are kept vertically one above the other, box 1 is kept at the top, box 2 is kept below box 1 and so on. F is kept at an even numbered position from the top but not at the 2nd position. B is kept at the bottommost position. Only one box is kept between F and E. C is kept immediately above F. F is kept immediately above A. What is the position of box A from the bottom?
1
4th
2
5th
3
2nd
4
3rd