- AEGVP
- BEFVO
- CEGUO
- DEGVO
Step-by-Step Solution
Compare BOAT with CQDX letter by letter: B → C is +1, O → Q is +2, A → D is +3, T → X is +4. The shift grows by one for each following letter. Apply the same shifts to DESK: D + 1 = E, E + 2 = G, S + 3 = V, K + 4 = O. The code word is EGVO.
Answer: D) EGVO