Is it? If the desired courses are only offered once every two years, then the student has no choice about when to take them. And if, in the semester they are offered, they have time conflicts with other desired courses, too bad.
Is it? If the desired courses are only offered once every two years, then the student has no choice about when to take them. And if, in the semester they are offered, they have time conflicts with other desired courses, too bad.