You may choose either to wait and apply for August graduation or you may graduate in Spring and apply to Extended Studies. Extended Studies hours may not be used toward that bachelor's degree. I have applied for August graduation. Check with your advisor. At least 120 total hours are required.
Some majors require more hours.
12 hours of D may be applied overall and 6 may be applied to the major. Some majors do not allow any hours of D within the major. At least 45. This rule has been in effect since 1981. Course numbers preceded by an L and renumbered courses that were not upper level when taken are not upper level.