What is the main function of the FCC?

The main function of the FCC, or Federal Communications Commission, is to regulate communication in various forms, including television, radio, cable, and satellite services. This regulatory body ensures that communication systems operate fairly and efficiently, overseeing matters such as licensing, spectrum allocation, and compliance with federal communication laws.

This choice accurately reflects the FCC's role in maintaining an orderly and effective communication landscape, which is vital for the promotion of competition, innovation, and accessibility in media and telecommunications. The other options pertain to different regulatory entities, such as those focusing on financial services or agriculture, rather than communication.