In a certain code, MONEY is written as NPOFZ. How is LEDGER written in that code?

Correct answer: B) MFEHFS

Explanation

Each letter is replaced by the next letter of the alphabet (M→N, O→P, N→O, E→F, Y→Z). Applying +1 to LEDGER: L→M, E→F, D→E, G→H, E→F, R→S, giving MFEHFS. KDCFDQ applies −1 and NGFIGT applies +2.