What does the Federal Communications Commission (FCC) regulate?

The correct answer pertains to the Federal Communications Commission (FCC), which is responsible for regulating all communication facilities and companies within the United States. This includes oversight of various forms of communication such as broadcasting, telecommunications, satellite, and cable services. The FCC ensures compliance with laws and policies that govern how these entities operate and provide services to the public. By regulating the spectrum of communications, the FCC aims to promote competition, innovation, and access to communication for all citizens.

In contrast, the other options pertain to different regulatory bodies or areas of focus. Aviation noise management is typically overseen by the Federal Aviation Administration (FAA). Interstate travel regulations would fall under transportation authorities and are managed through policies rather than by the FCC. Public health standards are regulated by organizations like the Centers for Disease Control and Prevention (CDC) or the Food and Drug Administration (FDA). Thus, the answer accurately captures the wide authority the FCC has in managing communications.