Which three sewing skills would be the most important clothing repair techniques to know?

Question 5 options:

A blanket stitch, seam ripping, and darning.

A back stitch, hiding a zipper, and applique.

Attaching a button, a seam stitch, and making a hem.

Gathering, pleating, and over-stitching.

Attaching a button, a seam stitch, and making a hem.