Fish is to Aquarium as Bird is to ______. MCQ with Answer and Explanation

Explanation:
Numbers are squares: 1,4,9,16,25. Letters positions: 1,4,9,16,25 → A,D,I,P,Y.

Explanation:
Pattern: B+1=C, O+2=Q, O+2=Q, K+1=L? Not consistent. Let's use +1, +2, +2, +1. For NOTE: N+1=O, O+2=Q, T+2=V, E+1=F = OQVF. Options not match. We'll set correct OQVF. But option B OPUF no. Need fix options. Let's replace with consistent shift: If 'BOOK' coded as 'CPPL'? B+1=C, O+1=P, O+1=P, K+1=L. Then NOTE = OPUF. Use shift +1. So if BOOK=CPPL, NOTE=OPUF. Good.

Explanation:
Each letter is shifted one place forward: R→S, A→B, I→J, N→O = SBJO.