A.和所在系(SD),实现该功能的正确SQL语句是______。A) SELECT XM, SA, SD FROM STUD WHERE BETWEEN 20<SA<23; B.SELECT XM, SA, SD FROM STUD WHERE SA BETWEEN 23 AND 20; C.SELECT XM, SA, SD FROM STUD WHERE SA NOT BETWEEN 20 AND 23; D.SELECT XM, SA, SD FROM STUD WHERE SA BETWEEN 20 AND 23;