LOO, MON, NOM, OOL, _________ a) POK b) HOL c) HOK d) JOI

These is question of logical reasoning. In such question you have to find out the pattern present in the arrangements of the alphabets.

If you look carefully in the series given the alphabet 'O' is consistent in all of the combination and its position is also fixed that is in the middle. So the answer we will get will be of the nature *O* where in place of * we have to put the other alphabets as per the patter.

Now if we look in the first alphabet you will observe that the first alphabet is changing by its next alphabet i.e., L-->M--->N--->O then the first alphabet of our answer will be the next alphabet of O i.e., P. So our answer will be PO*.

Now here as there is only one option with P in the answer will be A. We can do it without finding the last alphabet. But if there are multiple options with PO then you have to find out the last alphabet. For your help I am specifying the patter of the last alphabet.

For the last alphabet as you move from left to right then you will see that the last alphabet is getting replaced by its previous alphabet i.e., O---->N---->M--->L. Thus the option last alphabet for our answer will be the previous alphabet of L i.e., K.

So the answer will be POK which is the option A.

I hope my answer helps. All the very best for your future endeavors!