Which statement best describes the concept of "cloud storage"?

The concept of "cloud storage" is best described by the statement that it enables remote storage on servers accessed via the internet. This definition captures the essence of cloud storage, as it allows users to save their files on servers hosted by third-party providers rather than on local physical devices. One of the key benefits of cloud storage is that it enables users to access their data from anywhere with an internet connection, facilitating easy sharing and collaboration.

The other statements do not accurately depict cloud storage. Storing data on physical devices only does not encompass the remote aspect integral to cloud solutions. A single-user data access model contradicts the collaborative nature often provided by cloud storage, which allows multiple users to access and manage files simultaneously. While having an internet connection greatly enhances cloud storage accessibility, some services may offer offline capabilities temporarily, making access not entirely dependent on a constant internet connection. Therefore, the choice that defines cloud storage succinctly is its remote server access via the internet.