What are three common types of network services?

The selection of web services, file sharing, and email services accurately represents three widely recognized types of network services that facilitate various online activities.

Web services, as a category, provide functionality and data over the internet, allowing applications to communicate and share information. They can be essential for delivering web content, such as APIs that enable different systems to interact.

File sharing services enable users to transfer and store files over a network, promoting efficient collaboration and resource sharing. This service is fundamental in both personal and professional environments, as it streamlines access to documents and media.

Email services have been a cornerstone of digital communication, allowing users to send, receive, and store messages electronically, which is integral to both personal and business communication networks.

The other options focus on different aspects or types of network services that may not align with the notion of "common" in the same broader context. For instance, while cloud storage and VoIP are important, they might be more specialized compared to the more universally recognized nature of web, file sharing, and email services.