把对Student表和Course表的全部操作权授予用户User1和User2的语句是() A: GRANTAllONStudent,CourseTOUser1,User2; B: GRANTStudent,CourseONAllTOUser1,User2; C: GRANTAllTOStudent,CourseONUser1,User2; D: GRANTAllTOUser1,User2ONStudent,Course;