The verified answer to “In a certain code, FOOD is written as DFOO. How will TABLE be written in that code?” is ETABL, option C. The source working states: Correct answer: ETABL (Option D). Apply the same unchanged rule to TABLE: T→E, A→T, B→A, L→B, E→L. Therefore the required code is ETABL. Wrong options: UBCMF is wrong because it does not reproduce the verified rule at every position; VCDNG is wrong because it does not reproduce the verified rule at every position; SZAKD is wrong because it does not reproduce the verified rule at every position. Even one mismatched position invalidates a code, so only Option D 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 ETABL. The alternatives VCDNG, SZAKD and UBCMF fail because at least one position does not obey the same transformation. A useful final check is to map ETABL backward through the inverse operation and confirm that the original target is recovered.