What are some features of cloud computing?

The choice highlighting scalability and flexibility aptly captures key benefits of cloud computing. Scalability refers to the ability of cloud services to adjust resources according to the needs of the user. This means that businesses can easily scale up their resources during peak demand times or scale down when demand decreases, thus optimizing costs and resource use. Flexibility complements this by allowing users to access services and applications from anywhere with an internet connection, facilitating remote work and collaboration.

In contrast, the other options describe limitations or characteristics that do not align with the principles of cloud computing. Limited accessibility and fixed hardware requirements imply constraints that are contrary to the core advantages offered by cloud services, which promote widespread accessibility and do not tie users to specific hardware setups. Dependence on physical storage devices contradicts the essence of cloud storage, which uses remote servers instead of local devices for managing data. Lastly, suggesting that cloud computing is restricted to single-user access contravenes its fundamental capability to support multiple users and collaborative environments.