给xiaowang的用户分配对数据库course 中的student表的查询、更新和插入数据权限的语句是_______。

A. grant select,update,insert on course.student for ‘xiaowang@localhost’;
B. grant select,update,insert on course.student to ‘xiaowang@localhost’;
C. grant ‘xiaowang@localhost’ to select,update,insert for course.student;
D. grant ‘xiaowang@localhost’ to course.student on select,update,insert;