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，SDFROM STUD WHERE SA BETWEEN 20 AND 23