The supporting material used for the reinforcement of stitches in garment construction is:

Correct option is A

Stay tapes are the supporting material used to reinforce seams and stitching in garment construction. They are typically applied to areas that require additional structure and strength, such as necklines, armholes, waistlines, or seams that need extra stability. Stay tapes prevent stretching and help maintain the shape of the garment over time.
Information Booster:
· Stay tapes (a): These tapes are generally made from materials like cotton, polyester, or nylon and are inserted into the seams to reinforce the fabric and prevent it from stretching or distorting, ensuring that the garment maintains its shape.
Additional Knowledge on Incorrect Options:
· Ric-Rac (b): Ric-Rac is a decorative trim, often used to embellish edges of garments. It is not intended for reinforcing seams.
· Satin Ribbons (c): Satin ribbons are often used as embellishments or for decorative purposes in garment design, not for reinforcing stitches.
· Fasteners (d): Fasteners like buttons, zippers, or hooks are used to close garments, not to reinforce stitching.