Find the odd 4-letter block (edge-pair pattern): Identify the item that breaks the “+1, then a big forward jump, then +1” symmetric-edge pattern.

Introduction / Context:
Four-letter blocks can encode balanced edge behavior: the first pair increments by +1, then a larger forward jump brings the sequence near the end of the alphabet, followed by another +1. This yields a “+1, big jump, +1” edge pattern in many reasoning sets.

Given Data / Assumptions:

• ABYZ: A→B (+1), B→Y (large jump), Y→Z (+1) → fits.
• CDWX: C→D (+1), D→W (large jump), W→X (+1) → fits.
• EFUV: E→F (+1), F→U (large jump), U→V (+1) → fits.
• GHTV: G→H (+1), H→T (large jump), T→V (+2) → breaks the final +1 edge.

Concept / Approach:
Focus on the edge increments (1st→2nd and 3rd→4th letters). The outlier alters the final edge from +1 to +2.

Step-by-Step Solution:

Verification / Alternative check:
Visualize on the alphabet line: three land on adjacent letters at both ends; GHTV skips one at the tail.

Why Other Options Are Wrong:
They preserve the symmetric small-step edges around a central large jump.

Common Pitfalls:
Do not try to equalize the middle “big jump”; its size varies but the edge +1 pattern is the intended key.

Final Answer:
GHTV