Which type of centre is used to support the end of the jobwhere no countersink hole is permitted?

Which type of centre is used to support the end of the jobwhere no cou

1.	Which type of centre is used to support the end of the job where no countersink hole is permitted?
A.	ordinary centre
B.	half centre
C.	female centre
D.	none of the mentioned
Answer» D. none of the mentioned