以下语句对用户user 赋予MyDB数据库中的student 表上sno,sname两个字段更新的权限,正确的语句是()
A.A. grante update(sno,sname) on MyDB.student on user@'localhost' B.B. grant update(sno,sname) on MyDB.student to user@'localhost' C.C. grant update(sno,sname) to MyDB.student for user@'localhost' D.D. grant update(sno,sname) to MyDB.student on user@'localhost'正确答案B