Multi-choice problem: Choose from the options at the end, and answer how do you do this: Sew your own curtain.

Choose your answer from: a). First measure your window and decide what size curtain you would like. Pick the material you would like to make them out of and measure. b). Find material you would like to make a curtain out of and fold it in half covering the curtain rod at the same time. Sew closed the area over the rod and hang.
a).