Seven kids M, N, O, P, Q, R and S are standing in a row facing north. S is to the immediate right of P and to the immediate left of N. M is on the immediate right of O. M and P have one kid standing between them. Q and N have two Kids between them. P and R have also two kids standing between them. Who is exactly in the middle?

• A. M
• B. S
• C. O
• D. P