This is dependent on what class you are taking.

For any entry-level courses (CS 312, CS 313K/311, CS 314, M 408S/L/D), you must make a C or better. If you make less than a C on an entry-level course, you will need to retake it before continuing in the sequence.

If you are taking a core-curriculum course, foreign language course, or elective (i.e. UGS, GOV, HIS, Social Science, RHE, etc.), you must make a D- or better to fulfill that degree requirement. If you make less than a D- on a core-curriculum course or elective, it will not count and you will need to retake the course or choose another option (if you area allowed a choice, such as Social Science or elective courses).

If you are taking any other CS, math or science courses required by your degree, you must make a C- or better. This means that if you make between a D- and C- on any CS upper division classes, they will only count as electives and will have to be retaken (or another course can be taken in their place, if they are CS Upper Division Electives) for a grade of C- or better to count for your CS degree requirements.