In the early stages of their development, broadcast media were primarily…

Concept

A communication system can be classified by the direction in which messages flow and by whether the receiver can return feedback through the same communication process.

One-way communication sends a message from a source to an audience without an immediate reciprocal channel, whereas two-way communication includes an active return path for feedback.

Application

Early radio and television broadcasting used a centralized transmitter to send the same programme to a large, dispersed audience.

The audience mainly received the programme; it did not have an immediate, built-in channel to respond to the broadcaster. This source-to-audience pattern is one-way communication.

Contrast

• Positive communication describes the constructive quality or effect of a message, not its direction of flow.

• Negative communication describes an adverse quality or effect, not the structural pattern of broadcasting.

• One-way communication describes a sender-to-audience flow without immediate reciprocal feedback.

• Two-way communication requires an active return path through which the receiver can respond during the exchange.

Cross-check

Applying the feedback test confirms the distinction: traditional early broadcasting supplied a transmission path to listeners or viewers, but no comparable immediate return path from each audience member.

Result

Therefore, the best-supported answer is one-way communication.