A. 5 mm diameter
B. 10 mm diameter
C. 15 mm diameter
D. 20 mm diameter
Correct Answer: 5 mm diameter ✔
Last Updated: March 29, 2019
A. 5 mm diameter
B. 10 mm diameter
C. 15 mm diameter
D. 20 mm diameter
Correct Answer: 5 mm diameter ✔
Last Updated: March 29, 2019