Four letter groups with step of two – UGC NET Question

Each group is a block of four consecutive letters. The starting letters are E, G, I and K (positions 5, 7, 9, 11), increasing by 2 each time. The next start is M (13), giving MNOP.

Option A:
Option A is correct because it begins at M, exactly two positions after K, and continues with N, O and P consecutively.

Option B:
Option B starts at N (14), which is +3 from K, not +2, so it breaks the step.

Option C:
Option C starts at L (12), only +1 from K, so it breaks the step.

Option D:
Option D starts at O (15), +4 from K, so it breaks the step.