Where is the question being use? Exams?
Credit units (CU) is an US examination scoring system.
A- entitle u 4 CUs
B-"" 3CUs
C-''''2CUs
D-''''1Cus
E-''''fail
eg: if you score a straight for all subjects, u achieved a GPA 4.0
which means full mark.
Note: CUs tied up with GPA
