Geometry

Question Analysis:
Tests understanding of which quadrilaterals always have bisecting diagonals.

Key Concept Explanation:
Parallelograms (including rectangles/rhombuses) always have bisecting diagonals.
Trapezoids and kites do not guarantee this.

Step-by-Step Solution:
Eliminate non-parallelograms:
A: Trapezoids need only one pair of parallel sides.
B: Kites have perpendicular diagonals but no bisection guarantee.
C is the best ...