Alphabet pairs – determine the next pair Sequence: GH, JL, NQ, SW, YD, ?

Introduction / Context:
Paired-letter sequences often evolve each letter independently with different step sizes, sometimes including wrap-around from Z back to A. Here the first and second letters grow by increasing steps.

Given Data / Assumptions:

• Pairs: GH, JL, NQ, SW, YD, ?
• Alphabet positions A=1, …, Z=26 with wrap for sums beyond 26.

Concept / Approach:
Track the first letters as one subsequence and the second letters as another. Look for increasing step sizes (+3, +4, +5, …) and apply modular arithmetic for wrap-around.

Step-by-Step Solution:

Verification / Alternative check:
Write the step ladders explicitly: first-letter increments 3,4,5,6,7; second-letter increments 4,5,6,7,8. Both sequences are consistent and reproduce the given terms including the wrap to D, then to L.

Why Other Options Are Wrong:

• EJ or EL: first letter would require +? that does not match +7; EJ also breaks the second-letter stepping.
• FJ: second letter J (10) would imply 4→10 is +6, not the required +8.
• GL: first letter would be +? from Y that is not +7; it would mean moving forward 5, breaking the pattern.

Common Pitfalls:
Forgetting to apply wrap-around arithmetic and thus misreading W→D; assuming constant steps rather than increasing ones.

Final Answer:
FL