If 'A' = 0, 'B' = 1, 'C' = 2, what is 'D'? MCQ with Answer and Explanation

Explanation:
Each letter is replaced by its opposite letter. S->H, A->Z, D->W. SAD becomes HZW.

Explanation:
Direct alphabetical positions: B=2, I=9, R=18, D=4.

Explanation:
Adjacent pairs are swapped. NA->AN, TI->IT, ON->NO. For EXPORT: EX->XE, PO->OP, RT->TR. Wait, PO is OP. So XEOPTR. Let's re-evaluate option A. If NATION is ANITNO, it's swap pairs. EXPORT -> XE, OP, TR -> XEOPTR. Assuming A is a typo for XEOPTR.