Final answer:
In the early days of television, the responsibility for the production and content of most television programs fell on the networks. They purchased the rights to programs and distributed them to local stations affiliated with them.
Correct option is A.
Step-by-step explanation:
In the early days of television, the production and content of most television programs was the responsibility of the networks. National networks like CBS or NBC purchased the rights to programs, which they then distributed to local stations across the United States. Most local stations are affiliated with a national network corporation, and they broadcast national network programming to their local viewers.