Which description best fits web layers in the context of web maps?

Web layers are designed to function within the framework of web maps, facilitating interaction and accessibility over the internet. The best description encapsulates their nature of being editable, shareable, and displayable online. Unlike raster image-only layers, web layers can encompass a variety of data types, including vector and feature layers, which can be actively managed and utilized in web applications.

Web layers also support dynamic interactions and provide real-time data updates, enhancing the functionality of web maps. This capability to easily share and collaborate with others on geographic data sets highlights the collaborative potential of web layers, which aligns perfectly with contemporary GIS practices and user engagement strategies.