A. A function which updates the SALARY of all the employees in an EMPLOYEES table by a fixed percentage based on their DESIGNATION.

B. A function which calculates the factorial of a given number without accessing any table.

C. A function which inserts multiple records into a DEPARTMENTS table as part of one-time data setup for an HR application.

D. A function which accesses multiple tables and calculates the commission to be given to a sales representative based on the number of products sold by that representative.

E. A function which deletes all the records from an EMPLOYEES_AUDIT table based on their LOG_DATE.