You are developing a bonus report for the payroll application to calculate and display the bonus issue to each envelope. Employees with a salary of less than 50000$ earn a bonus of 15% and the employees who earn 50000$ or more earn out 10% bonus. Which type of trigger would you use to conditionally assign a bonus percentage?()
A、Report level trigger.
B、Group filter.
C、Format trigger.
D、None of the above.