Explain why the image is projected upside down when using a pinhole camera pl

Usually without a lens but with a tiny aperture, a pinhole – effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura effect.

Ithink the answer is c

1) d2) a3) false  4) true  5) false