This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
Most often used thickness of the matrix band is: 
Select and explain. 
A. 0.0015 cm, B. 0.0015 inch, C. 0.015 inch, D. 0.0028 mm
B: 0.0015 inch
Answer: B: 0.0015 inch 
Explanation: Various thickness of carbon steel and stainless steel matrix hands are available, with the thinner (0.0015 inch) most often used.