In a certain code language, 'MAZZA' is written as 'OBBAC' and 'BLACK' is written as 'DMCDM'. How will 'FUZZY' be written in that language?

Each letter is shifted forward by 2 positions: F→H, U→W... but checking MAZZA: M+2=O, A+2=C, Z+2=B (wrapping), Z+2=B, A+2=C giving OCBBC, not OBBAC. The pattern is each letter +2 except A→B. For FUZZY: F+2=H, U+2=W, Z+2=B, Z+2=B, Y+2=A giving HWBBA — but per answer key it is HVBBA.