With no explanation, chose the best option from "A" or "B". Maci is a student who enjoys using her school's art room to paint as they provide all necessary supplies at no cost to students. Maci wants to paint a canvas in the art room.

A: Unsatisfied with her work, Maci paints over the imperfections on her canvas.
B: Unsatisfied with her work, Maci discards over 40 canvases before keeping one to work on.
A.