What refers to an application or system that accesses a remote service or another computer system, known as a server?

A "Server" is the system that provides or hosts the service, not the one that accesses it.

In a client-server architecture, the client is the requesting program or computer that connects to the server to utilize its resources, data, or services, acting as the consumer of the remote service.

A "Script" is a set of instructions or code, not a system component that accesses a remote service.

"Policies" are rules or guidelines that govern behavior, not a system itself that accesses services.