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
Angle between rake face and radial line is called: 
Select and explain. 
A. Edge angle., B. Rake angle., C. Clearance angle., D. Spiral angle.
B: Rake angle.
Answer: B: Rake angle. 
Explanation: None