Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to use amazon locker [title] Add the item you'd like to purchase to your cart. [step] To do this, navigate to the item's amazon page and click the yellow " add to cart " button the right side of the screen. [substeps] If you aren't already signed in to amazon, you will be prompted to enter your username and password after choosing to proceed to your cart.

Ending1: [title] Click the " cart " button from the right side of the amazon window. [step] By default, the item in the cart window will be synced with your computer and will be sent to your amazon account. Ending2: [title] If the amazon locker option is available in your area, you'll see a link under your shipping address. [step] Click the link to pick a locker location. Ending3: [title] Select the " return " button from the options provided. [step] If you have multiple boxes to select, each box will have corresponding boxes of change included in the " back " box. Ending4: You cannot purchase the item from just the amazon account yet, so you should create a separate password and use that instead of your username. [title] Click " add credit card " to add the item.

Answer format: ending1/ending2/ending3/ending4