Final answer:
Option B). Higher level ISPs, such as National ISPs, charge lower-level ISPs in a hierarchical structure, with Tier 1 ISPs being at the top of this hierarchy.
Step-by-step explanation:
The correct answer to the question "Higher level ISPs charge ________ _________ ISPs" is B) Tier 1. Regional and local ISPs are charged by higher level ISPs like National ISPs, which in turn charge lower level ISPs like Regional ISPs. Because of the way Internet services are distributed and the connections between different tiers of service providers, this hierarchical structure is in place.
In reference to the given statement, an affiliate is a local station that carries national network programming. When it comes to telecommunications, industry deregulation has made it possible for regional Bell operating companies to provide a greater range of services while maintaining competition, which keeps local monopolies from charging excessive rates for network access.