पहिल्या दोन अक्षरसमूहांमध्ये जो संबंध आहे, तोच नंतरच्या दोन अक्षरसमूहांमध्ये आहे; तर प्रश्नाचिन्हाच्या जागी येणारे पद शोधा ? TEACHER : SDIBBDU :: DOCTOR : ?

The correct answer is Option B (SNUBPC).

Key Points:
• Let's find the exact step-by-step logic by reversing the word first.
• Step 1: Reverse 'TEACHER' to get 'REHCAET'.
• Step 2: Apply alternating +1 and -1 to the letters in alphabetical order.
• R + 1 = S
• E - 1 = D
• H + 1 = I
• C - 1 = B
• A + 1 = B
• E - 1 = D
• T + 1 = U. This perfectly gives 'SDIBBDU'.
• Apply to DOCTOR: Reverse is 'ROTCOD'. R+1=S, O-1=N, T+1=U, C-1=B, O+1=P, D-1=C. Result is SNUBPC. Option 2 is correct.
• Key Takeaway: Reverse the original word first, then apply an alternating +1, -1 sequence to the letters.