Select the internal control principle represented by each point in the following diagram. 3. The warehouse is locked and activities electronically monitored. \begin{tabular}{|l|l|} \hline 1. One office employee places all merchandise orders. & Internal Control Principle \\ \hline 2. Goods are received only by warehouse employees. & \\ \hline 3. The warehouse is locked and activities electronically monitored & \\ \hline 4. Merchandise orders are recorded on a purchase order form. & \\ \hline 5. Recelving reports are completed to indicate goods received & \\ \hline 6.Goodsbilledbysuppliersarecomparedtopurchaseordersandreceivingreportsbeforebeingpaid & \\ \hline \end{tabular}