IQS : LNV, As we can see I is replaced by the letter 3rd to the right of I in the alphabetical series Q is replaced by the letter 3rd to left of Q in the alphabetical series. S is replaced by the letter 3rd to the right of S in the alphabetical series. Thus, in JRM, J will be replaced by M, R will be replaced by O and M will be replaced by P. Hence, option B is the correct answer.