Here is a goal: For making an acrylic router base plate, what type of acrylic should I use?

Which way makes more sense to accomplish this goal?

Available options:
(A). You want to use cast sheet acrylic. Extruded acrylic is not as good for processing, nor is it as durable as sheet acrylic.
(B). You want to use cast sheet acrylic. Extruded acrylic is better for processing, and more durable than sheet acrylic.
(A).