What Continuity feature allows scanning documents or taking photos with an iPhone to appear on a Mac?

The feature that allows users to scan documents or take photos with an iPhone and have them appear on a Mac is Continuity Camera. This functionality is part of Apple's Continuity suite, which aims to provide a seamless experience across their devices.

When using Continuity Camera, a user can open an app on their Mac that supports this feature, such as Notes or Pages, and the camera on their iPhone will become available as an option for inserting images or scanned documents. This not only simplifies the process of transferring images but also enhances productivity by allowing users to use their iPhone's camera capabilities directly within Mac applications.

The other options, while related to Apple’s ecosystem, serve different purposes. iCloud Drive is primarily for file storage and syncing across devices, not specific to camera functions. Apple Handoff allows users to start a task on one device and continue it on another, but it does not specifically address the function of scanning or taking photos. iMessage, on the other hand, is a messaging service for communication, and does not relate to the functionality of scanning or importing images to a Mac.