Explanation:

Let's analyze each option:

- Option 1: DWEV

- If you look at the alphabetical sequence, each letter increments by 1, 2, and 3 respectively (D?W: +19, W?E: -18, E?V: +17). The progression is inconsistent.

- Option 2: HSIR

- H?S: +11, S?I: -10, I?R: +9. The jumps are inconsistent and involve large positive and negative shifts.

- Option 3: KPLO

- K?P: +5, P?L: -4, L?O: +3. Again, inconsistent jumps but involves both positive and negative shifts.

- Option 4: PKQI

- P?K: -5, K?Q: +6, Q?I: -8. The jumps are completely different in direction and size.

Odd one out:

- The first three options have some pattern but the fourth (PKQI) has the largest jumps and is the least consistent.

Correct Answer: Option: 4 — PKQI