How are bonus plans assigned to employee assignments? There are 2 correct answers to this question

How are bonus plans assigned to employee assignments? There are 2 correct answers to this question
A . The bonus plan file includes start and end dates that correspond to each employee assignment dates
B . The bonus plan for each employee assignment is included in the employee history data file
C . Using the fields in employee history as look-up attributes in eligibility file
D . The eligibility file should contain the bonus plan name
E . Creating rule in eligibility file that corresponds to each bonus plan

Answer: C,E