Concept:The series follows a pattern where each letter's position in the alphabet increases by a specific step.
Explanation:Write each pair as their alphabetical positions: A=1, B=2 → AB. C=3, E=5 → CE. F=6, H=8 → FH.
First letters: 1, 3, 6. The gaps increase by 1 each time (+2, +3). Next gap is +4, so 6+4=10 → J.
Second letters: 2, 5, 8. The gap is constant +3 each time. So 8+3=11 → K.
Thus the next term is JK.
Answer:JK (Option 2)
