从student表中查询1990年出生的女生名字的语句正确的是：
A. SELECT StudentName FROM Student
B. SELECT StudentName FROM Student WHERE Sex = '女'
C. SELECT StudentName FROM Student WHERE Birth = 1990 and Sex = '女'
D. SELECT StudentName FROM Student WHERE YEAR(Birth) = 1990 and Sex = '女'
从Grade表中查询及格的学生的学号、课程ID和分数的方法是：
A. SELECT StudentID, CourseID, Grade FROM Grade WHERE Grade = 60
B. SELECT StudentID, CourseID, Grade FROM Grade WHERE Grade > 60
C. SELECT StudentID, CourseID, Grade FROM Grade WHERE Grade >= 60
D. SELECT StudentID, CourseID, Grade FROM Grade WHERE Grade == 60
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