Which method from the IDfACL interface must be used to revoke the permission to "docuser"?

User “docuser” has READ permission in an ACL. Which method from the IDfACL interface must
be used to revoke the permission to “docuser”?

A.
revoke(“docuser”, IDfACL.DF_PERMIT_READ)

B.
grant(“docuser”, IDfACL.DF_PERMIT_NONE, null)

C.
revokePermit(“docuser”, IDfACL.DF_PERMIT_READ)

D.
removePermit(“docuser”, IDfACL.DF_PERMIT_READ)