In the following coded letter analogy, PEON is related to QRHS by a specific reversal and letter shift. Using the same rule, JOCK is related to which of the following options?

Introduction / Context:
This question involves a coded letter analogy where one word is converted into another using a pattern based on letter positions in the English alphabet. You must decode how PEON becomes QRHS and then apply the same transformation to the word JOCK. Such questions are common in aptitude tests and evaluate a candidate's ability to handle abstract coding and decoding of words.

Given Data / Assumptions:
- Given pair: PEON and QRHS.
- Target base word: JOCK.
- All answer options are four letter strings matching the length of JOCK.
- The same rule used on PEON must be used on JOCK to maintain a valid analogy.

Concept / Approach:
We first convert letters to their numerical positions in the alphabet. Then we look for a positional or rearrangement pattern between PEON and QRHS. Direct letter by letter shifting appears irregular. A useful idea is to check whether the original word has been reversed before a uniform shift is applied. If we reverse PEON, we get NOEP. Now we can examine what happens when each letter of NOEP is shifted forward by a fixed number of positions.

Step-by-Step Solution:
Step 1: Write PEON and reverse it to get NOEP. Step 2: Convert letters to positions: N is 14, O is 15, E is 5, P is 16. Step 3: Add 3 to each position: 14 becomes 17 (Q), 15 becomes 18 (R), 5 becomes 8 (H), 16 becomes 19 (S), giving QRHS. Step 4: Confirm that reversing then adding 3 explains the given pair PEON : QRHS. Step 5: Apply the same procedure to JOCK. Reverse JOCK to get KCOJ. Step 6: Convert K, C, O, J to numbers: 11, 3, 15, 10, then add 3 to each to get 14 (N), 6 (F), 18 (R), 13 (M), forming NFRM. Step 7: Match NFRM with the options and select it.

Verification / Alternative check:
Re check that PEON to QRHS indeed follows the rule reversed word plus three positions. NOEP shifted by three gives QRHS exactly. Doing the same with KCOJ gives NFRM, and this output appears exactly as option A. No other option follows the same two step rule consistently, which confirms the correctness of the answer.

Why Other Options Are Wrong:
Option B NFMR, option C NEFM and option D NFMM all use some of the same letters but in different orders or with different shifts. They might look similar at a glance, but they do not come from reversing JOCK and adding three to each letter. Since the analogy must mirror the given mapping exactly, these alternatives are invalid.

Common Pitfalls:
A common mistake is to attempt a direct shift on PEON without noticing that the letters have been reversed before shifting. Another pitfall is inconsistent shifting, such as adding different values to different letters, which breaks the uniform pattern needed in analogies. Always confirm whether reordering steps like reversal are involved before looking for numerical shifts.

Final Answer:
Using the reverse then plus three coding rule, the correct coded form of JOCK is NFRM.