What is flagging in parachute sewing, and how can it be prevented?

What is flagging in parachute sewing, and how can it be prevented?

• A. Flagging is fabric flutter at the needle causing misfeed; prevent with correct needle size, proper tension, smooth fabric feed, and correct presser foot.
• B. Flagging is a type of knot used at seam joints; prevent by tying knots.
• C. Flagging is the process of folding fabric; prevent by steaming.
• D. Flagging is the result of over-cleaning fabric; prevent by reducing wash time.

Answer: (A)