Which of the following is correct about smaller ball using in the method of checking angle of tapered hole by using balls?

• A. Small ball should be of the size so that it will be seated somewhere in between hole
• B. Small ball should be of the size so that it will be seated at the bottom most position in the hole
• C. Small ball should be of the size so that it will be seated at the top most position in the hole
• D. There is no effect of ball position on the method