Imagine we have the following scene. The scene consists of five polygons parallel to the y$-$axis $($which is why they look like straight lines from this top$-$down point of view$).$ Each polygon has an arrow indicating which direction is front$-$facing. The eye $($camera$)$ is positioned at the origin and is pointing along the negative z axis, we are using the painter's algorithm to draw our scene, and we have back$-$faced culling turned on$.$

a$.$ Which polygons will not be rendered? Explain how you know.

b$.$ Of the remaining polygons, in which order will they be rendered? Explain how you know.