Which of the following is an example of cloud storage?

Cloud storage refers to the practice of storing data on remote servers that can be accessed over the internet, rather than on local storage devices. Google Drive is a prime example of cloud storage, as it allows users to save files on Google's servers. This means that users can access their files from any device with internet connectivity, share them with others, and collaborate in real-time.

The important feature of cloud storage is that the physical hardware storing the data is not directly managed by the user; instead, it is maintained and provided by a third-party service. Other options listed—such as USB drives, local hard drives, or SSDs—are examples of local storage solutions, meaning they store data directly on physical devices connected to or installed in a computer. These do not offer the same accessibility or collaborative features as cloud storage.