1. 8221-1. Which of the following defects are not acceptable for metal lines? 1. Cracked flare 2. Seams 3. Dents in the heel of a bend less than 20% of the diameter 4. Scratches/nicks on the inside of a bend less than 10% of wall thickness 5. Dents in straight section that are 20% of tube diameter A. 1, 2, 3, 4, and 5 B. 1, 2, and 3. C. 1, 2, 3, and 5