Seven boxes H, I, J, K, L, M, and N are kept in a stack one above the other but not necessarily in the same order. Box J is Six boxes above box L. Box M is positioned at a prime numbered position and is immediate below box I. Box I is positioned at an odd-numbered position. Box N is kept immediately above box H, who is not adjacent to box I. Which of the following box is kept in the middle of the stack?