What are the two roles involved in communication?

The correct choice identifies the two fundamental roles involved in communication as the sender and the receiver.

The sender is the individual or entity that initiates the communication by conveying a message, idea, or information to another party. This role is crucial because the effectiveness of communication largely depends on how clearly and accurately the sender presents the information.

On the other hand, the receiver is the person or group that receives the message. The receiver's role is equally important, as it involves not just hearing or reading the message but also interpreting and understanding it. Successful communication occurs when the receiver accurately comprehends the intention behind the sender's message.

In essence, the interaction between the sender and the receiver is central to effective communication, as both must engage actively for the exchange to be meaningful, which is a key principle in fire and life safety education. Proper understanding of these roles helps educators in crafting their messages to ensure clarity and to enhance educational outcomes.