将角色role_instructor指派给用户instructor1,并且允许该用户转授权限给其他角色,对应 的 SQL 语句是 ________ 。
A.
grant role role_instructor to user instructor1 with admin option;
B.
grant role role_instructor to user instructor1 with grant option;
C.
grant role_instructor to instructor1 with admin option;
D.
grant role_instructor to instructor1 with grant option;