How do you trigger a business rule to populate the Standard Hours field from Legal Entity records in the Add New Employee wizard?

How do you trigger a business rule to populate the Standard Hours field from Legal Entity records in the Add New Employee wizard?
A . Event Type: onSave; Base Object: Legal Entity
B. Event Type: onlnit; Base Object: Standard Hours
C. Event Type: onChange; Base Object: Employee Information
D. Event Type: onEdit; Base Object: Employee Information

Answer: C