Geometry

Question Analysis：
The goal is to assess understanding of the directional condition required for glide reflections.
The main focus is to disqualify transformations that don’t meet the directional requirement.

Key Concept Explanation:
Vertical line (x = 2) → reflection
Translation: 4 units right → horizontal
Horizontal is perpendicular to vertical

Step-by-Step Solution：
Reflection over a vertical line = OK
Rightward translation = not parallel → so, not a glide reflection
The transformation is reflection + perpendicular translation

Option Analysis：
A – Incorrect: no rotation involved
B – Correct: fits exactly
C – Incorrect: translation direction ...