What distinguishes a public telecommunication infrastructure network from other types?

The correct choice highlights a key aspect of public telecommunication infrastructure networks by emphasizing their role in providing secure access for remote offices or users to an organization's network. Public telecommunication networks are essential for facilitating communication and connectivity over broader scopes than just local development or government restrictions. They connect users from various locations to the resources of an organization securely. This capability is fundamental in today's digital era, where remote access and the ability to communicate over long distances through a central infrastructure are vital for businesses and organizations.

The other choices reflect different characteristics not exclusive to public telecommunication networks. For instance, free access is often not the case in many public networks, which may have certain restrictions and charges associated with usage. Limiting the network solely for government use contradicts the very nature of public telecommunication, which is meant for broader access. Lastly, restricting communication to local devices only pertains to local area networks (LANs) rather than public telecommunication networks designed to connect a wide array of users and devices over vast distances.