When you share a photo on a social media platform, what action are you taking?

Uploading is the correct action when you share a photo on a social media platform because it involves transferring a file from your device to the platform’s server. This process allows the photo to be stored in the platform's database, making it accessible for your followers or friends to view.

In contrast, downloading refers to transferring a file from the internet to your local device, which is not applicable in this case. Sharing, while seemingly a relevant option, is more about distributing content that already exists online rather than the initial action of getting your content onto the platform. Editing involves altering a photo before sharing, but it does not pertain to the action itself of making the photo available on social media. Therefore, uploading accurately describes the process of sharing a photo online.