What action should be taken when you want to place a new order?

The action that should be taken when placing a new order is to click the New Order button. This is the dedicated option specifically designed for initiating a new order within a system. It typically leads the user through the necessary steps to input details about the order, such as item selection, quantity, shipping information, and other relevant parameters. Understanding the function of this button is crucial for efficiently managing order processes.

Using the Update button would typically be meant for changing details of an existing order rather than creating a new one. The Discontinue button would generally be intended for ceasing an existing order, which does not apply to placing a new order. The Modify button is similar to the Update option, focusing on making changes to an already established order rather than initiating a new order altogether. Therefore, selecting the New Order button is the appropriate and correct action to take when you want to place a new order.