Select the valid conjecture by the Law of Syllogism.

Given:
If a figure is a square, then the figure is a rectangle.
If a figure is a rectangle, then it is a parallelogram.

A: If a figure is a square, then it is a parallelogram.
B: If a figure is a parallelogram, then it is a rectangle.
C: If a figure is a parallelogram, then it is a square.
D: If a figure is a rectangle, then it is a square. ...?