Geometry

Question Analysis：
This is a classification question about types of quadrilaterals.
The main focus is identifying which figure always meets parallelogram conditions.

Key Concept Explanation：
A rhombus is a special type of parallelogram:
All sides are equal
Opposite sides are parallel
Opposite angles are equal
Diagonals bisect each other and are perpendicular

Step-by-Step Solution：
Rhombus satisfies all properties of parallelograms
Others (like kite and trapezoid) may only meet some criteria or none

Option Analysis：
A. Kite ❌ Only has adjacent sides equal
B. Trapezoid ❌ Only one pair of parallel sides
C. Rhombus...