Select the related letter code from the given alternatives: if PEON is coded as QGRR in a certain alphabetical code, then in the same code language which of the following will be the correct code for the word RUDE?

Introduction / Context:
This verbal reasoning question tests alphabetical coding and pattern based analogy. A known word is converted into a letter code by applying a fixed sequence of shifts in the English alphabet. You must discover that pattern from PEON to QGRR and then apply exactly the same rule to the new word RUDE.

Given Data / Assumptions:

• Word one: PEON
• Code for word one: QGRR
• Word two to be coded: RUDE
• All shifts are within the standard English alphabet with no reversal of order

Concept / Approach:
The usual approach in such coding questions is to compare corresponding letters in the given pair and compute the forward or backward shift in alphabet positions. Once a consistent pattern is found, the same series of shifts is applied to each letter of the unknown word in the same left to right order.

Step-by-Step Solution:

Verification / Alternative check:
Recheck each shift carefully to avoid off by one errors. Starting from R and adding 1 gives S. Starting from U and adding 2 gives W. From D adding 3 gives G. From E adding 4 gives I. The pattern perfectly matches the original code rule applied to PEON, so SWGI is consistent with the discovered logic.

Why Other Options Are Wrong:

• MLNO doesn't follow the +1, +2, +3, +4 shift pattern when traced back to RUDE.
• TVSA violates the stepwise increasing shift rule and cannot be derived from RUDE with the discovered pattern.
• STRR shows repeated letters that do not arise when using the correct incremental shifts.
• SVGI is close visually but the second letter V does not match the required W after a shift of +2 from U.

Common Pitfalls:
Candidates often assume a single constant shift for all letters or try to work with position differences in the wrong direction. Another common mistake is to miscount alphabet positions by forgetting that A starts at 1, which can distort all subsequent shifts. Some may also wrongly apply the largest shift first instead of keeping the order strictly left to right.

Final Answer:
The correct code for RUDE is SWGI.