创建一个视图NPStuView，记录各课程考试有不及格的学生信息（包括：学号Sno，姓名Sname，课程号Cno，课程名Cname，成绩Grade）。则，该视图创建语句为（）
A. CREATE View NPStuView (Sno, Sname, Cno, Cname, Grade) SELECT Student.Sno, Sname, Course.Cno, Cname, Grade from Student, SC, Course WHERE Student.Sno=SC.Sno and SC.Cno=Course.Cno and Grade<60;
B. CREATE View NPStuView AS SELECT Sno, Sname, Course.Cno, Cname, Grade from Student, SC, Course WHERE Student.Sno=SC.Sno and SC.Cno=Course.Cno and Grade<60;
CREATE View NPStuView (Sno, Sname, Cno, Cname, Grade) AS SELECT Student.Sno, Sname, Course.Cno, Cname, Grade from Student, SC, Course WHERE Student.Sno=SC.Sno and SC.Cno=Course.Cno and Grade<60;
D. CREATE View NPStuView AS SELECT Sno, Sname, Cno, Cname, Grade from Student, SC, Course WHERE Grade<60;
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