The risk of the addition of fictitious employees to the payroll by the person performing the payroll processing function is reduced by

The payroll department is responsible for assembling payroll information(record keeping). The personnel department is responsible for authorizing and executing employee transactions such as hiring, firing, and changes in pay rates and deductions. Segregating these functions helps prevent fraud. Thus, the payroll for each period   should be compared with the active employment files of the personnel department. Authorization by the personnel department is the only control placed in the transaction flow early enough to prevent the addition of bogus employees to the payroll

D Requiring a reconciliation of hours between time cards and hours paid.

Options (A) and (C) are controls put in place to reduce chances of fraud.

The correct option is >>>>>>>>>>>>>>>>>>>> (A)

Thanks for invitation, and I am really sorry for my late, because I were  had a lot of work.

Option A) Answer <<<<<<<<<<<<<

A. Requiring that payroll additions be approved by the controller. &

D. Requiring a reconciliation of hours between time cards and hours paid.

Option (A) would be the ideal answer. 

But depending on the Organization Structure Option (C) and (D) will also act as a deterrent to any suspicious fraudulent activities.