<human>: Which of the following solutions is better for the following goal:
How to sew the hem on the square skirt.

OPTIONS:
- On the bottom of the skirt, fold less than an inch backwards and secure with pins. Sew on the hem of the skirt until the whole hem is secure.
- On the top of the skirt, fold less than an inch backwards and secure with pins. Sew on the hem of the skirt until the whole hem is secure.
<bot>: On the bottom of the skirt, fold less than an inch backwards and secure with pins. Sew on the hem of the skirt until the whole hem is secure.