Each of D, E, F, H, I, J and K has an exam on a different day of a week starting from Monday and ending on Sunday of the same week. K has the exam on Thursday. H has the exam on one of the days after D and on one of the days before E. F has the exam on one of the days after J but on one of the days before I. J has the exam on one of the days after K. How many people have the exam between F and H?
AThree
BFour
COne
DTwo