Read the following information carefully and answer the questions given below: Nine boxes - A, B, C, D, E, F, G, H and I are kept one above another in...

Read the following information
carefully and answer the questions given below:

Nine boxes - A, B, C, D, E, F, G, H and I are kept one above
another in a single stack, but not necessarily in the same
order. Only one box is kept between box E and box G. Box I
is kept three boxes above box G. Box E is kept four boxes
below box H. As many boxes are kept between box H and
box I as between box D and box E. Box E is kept above box
D. Box F is kept immediately below box C. Only two boxes
are kept between box A and box F. Box B is kept above box
A.

If all the boxes are arranged in alphabetical order
from bottom to the top in alphabetical order, then how
many boxes will not change their position?