The verified answer to “In a certain code, FARM is written as UZIN. How will CLOUD be written in that code?” is XOLFW, option B. The source working states: Correct answer: XOLFW (Option C). Apply the same unchanged rule to CLOUD: C→X, L→O, O→L, U→F, D→W. Therefore the required code is XOLFW. Wrong options: DMPVE is wrong because it does not reproduce the verified rule at every position; ENQWF is wrong because it does not reproduce the verified rule at every position; BKNTC is wrong because it does not reproduce the verified rule at every position. Even one mismatched position invalidates a code, so only Option C is correct. This observation must be confirmed across every available letter position or every consecutive term before it is applied to the missing code. Applying the verified rule to the target expression produces XOLFW. The alternatives ENQWF, BKNTC and DMPVE fail because at least one position does not obey the same transformation. A useful final check is to map XOLFW backward through the inverse operation and confirm that the original target is recovered.