The internal control procedures in Weiser Company are provided below. Identify the principles of internal control that are being followed. Employees who have physical custody of assets do not have access to the accounting records. Each month the assets on hand are compared to the accounting records by an internal auditor. A prenumbered shipping document is prepared for each shipment of goods to customers. Options are: Independent Internal Verification Segregation of duties Documentation of procedures Establishments of responsibility Physical, mechanical, and electronic controls