Straight Caesar shift +1 on each letter FIELD : GJFME :: SICKLE : ?

Introduction / Context:
We decode a straightforward Caesar cipher: each letter advances by one position. Apply the same to the new source word.

Given Data / Assumptions:

• FIELD → GJFME (each letter +1).
• Task: SICKLE → ? using the same rule.
• Alphabet wrap-around applies after Z though not needed here.

Concept / Approach:
Identify the shift between F→G, I→J, etc. Since each is +1, replicate that for the second word.

Step-by-Step Solution:

Verification / Alternative check:
Shift back by −1 from TJDLMF and we retrieve SICKLE, validating the mapping.

Why Other Options Are Wrong:

• RHBJKD/RHJBKD/TJLDMF: Each contains at least one letter produced by an incorrect displacement or position swap rather than the uniform +1.

Common Pitfalls:
Changing the order of letters or applying different shifts to different letters when the rule is clearly uniform.

Final Answer:
TJDLMF