could someone the following question about AIS

Consider the internal controls listed below. For each one, explain: (i) the risk it addresses, (ii) the risk cate- gory from Brown's taxonomy, (iii) the broad purpose of internal control it achieves, and (iv) the nature of the control (preventive, detective, corrective). 1. Reconciling a bank statement. 2. Requiring that all purchase requisitions are coordi- nated through a central purchasing department. . Encouraging employees to attend annual seminars on ethical behavior in the workplace and related topics. . Tearing ticket stubs in half at a movie theater when a patron enters. . Collecting cash at one window and delivering the order in a different window at a fast food establishment