要求出教师中总学时数前三名的教师的教师号、姓名和总学时数,下列语句中正确的是______。
A.SELECT TOP 3教师号,姓名,总学时数; FROM TEACHER,JK ORDER BY总学时数
B.SELECT TOP 3 TEACHER.教师号,TEACHER.姓名,SUM(JK.学时)AS总学时; FROM TEACHER INNER JOIN JK; WHERE TEACHER.教师号=JK.教师号; GROUP BY JK.教师号; ORDER BY 3 DESC
C.SELECT TOP 3 TEACHER.教师号,TEACHER.姓名,SUM(JK.学时)AS总学时; FROM TEACHER INNER JOIN JK; ON TEACHER.教师号=JK.教师号; GROUP BY JK.教师号; ORDER BY 3 DESC
D.SELECT TOP 3 PERCENT TEACHER.教师号,TEACHER.姓名,; SUM(JK.学时)AS总学时; FROM TEACHER INNER JOIN JK; ON TEACHER.教师号=JK.教师号; GROUP BY JK.教师号; ORDER BY 3 DESC