Study the following information to answer the given questions.

Eight people – K, L, M, N, O, P, and R are seated in a straight line facing North but not necessarily in the same order, L sits third from the left end of the line, Only three people sit between L and R.

O sits to the immediate left of Q. Only one person sits between M and Q. P sits third to the left of N. L is not an immediate neighbor of K.

If each of hte persons is made to sit in alphabetical order from left to right, the positions of how many will remain unchanged as compared to the original seating arrangement?