Consider these statements.

1. If a quadrilateral is a square, then it is a rhombus.
2. If a quadrilateral is a rhombus, then all it's sides are equal.
Which conclusion can be drawn from these statements using deduction reasoning?

A. If a quadrilateral is a rhombus , then it is a square.
B. Quadrilaterals have four sides.
C. If a quadrilateral is not a square, then it is not a rhombus.
D. If a quadrilateral is a square, then all it's sides are equal

D. If a quadrilateral is a square, then all its sides are equal.