Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to change your amazon smile charity [title] Go to smile. Amazon.com. [step] Sign into your account just as you would sign into amazon.com.

Ending1: [title] Type the ingredients you want to apply to your smile. [step] To apply the ingredients, click the owl icon. Ending2: [title] Find " my account " in the top right corner of the page and click on it. [step] Scroll to the settings portion of the screen. Ending3: [title] Click on a link that says' amazon.com'. [step] It should look like this-' smile charity'. Ending4: [substeps] If you don't have a username, use " my user name " instead. [title] Click on your username in the upper right corner of the screen.

Answer format: ending1/ending2/ending3/ending4