The correct answer is: C. Internet Service Provider
An Internet service provider (ISP) is a company that provides access to the Internet. ISPs typically offer a variety of services, including dial-up, DSL, cable, and satellite Internet access. They may also offer other services, such as web hosting, email, and online storage.
Option A: Internal Service Provider is incorrect because an ISP provides access to the Internet, which is an external network.
Option B: International Service Provider is incorrect because an ISP can be a local, regional, or national company.
Option D: Internet Service Providing is incorrect because it is not a grammatically correct word.
Option E: Internet Service Provision is incorrect because it is not a commonly used term.