Directions:- Study the following information carefully to answer the question given below.
Six people - C, D, E, F, G and H are standing in a straight line facing North not necessarily in the same order. D is standing second to the right of F. C is standing fourth to the left of H and H is not standing on the extreme end of the line. E is standing second to the right of D.
If all the people are asked to stand in an alphabetical order from left to right, the positions of how many will remain unchanged?