Question: In a certain code, \'COLD\' is written as \'DPEE\'. How is \'WARM\' written in that code?
Options:
Correct Answer: XBSN
Solution:
Each letter is shifted by +1: C->D, O->P, L->E, D->E. Therefore, W->X, A->B, R->S, M->N, so WARM is coded as XBSN.