Geometry

Question Analysis:
This question involves applying the parallelogram judgment criteria based on side lengths.
The main focus is to recognize that congruent opposite sides (not adjacent) determine a parallelogram.

Key Concept Explanation:
A quadrilateral is a parallelogram if both pairs of opposite sides are congruent.

Step-by-Step Solution:
Identify opposite sides:
WX and YZ are opposite sides (8 = 8).
XY and ZW are opposite sides (5 = 5).
Since both pairs of opposite sides are congruent, WXYZ must be a parallelogram.

Option Analysis:
A) Correct. Meets the "both pairs of opposite sides congruent" theorem.
B) Incorrect. Both pairs of opposite sides are congruent, not just one pair (trapezoid requires only one pair of parallel sides).
C) Incorrect. No information about angles is given to conclude it’s a rectangle.
D) Incorrect. All sides...