Geometry

Question Analysis:
This question tests recognition of real-world glide reflection symmetry patterns.

Key Concept Explanation:
Glide reflection symmetry requires:
Reflection symmetry (left/right mirroring)
Translation component (forward movement)
Combination creates alternating mirrored patterns

Step-by-Step Solution:
A: Shows only translation symmetry
B: Correct - shows reflection (L/R feet) + translation (forward movement)
C: Demonstrates rotational symmetry
D: Shows simple translational symmetry

Common Mistakes: