Question

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): Channels are physical bridges between the sender and receiver of the message.
Reason (R): Dimensions of channel are: a. The mode of encoding and decoding messages; b. Message-Vehicles, and c. Vehicle carriers.
In light of the above statements, choose the most appropriate answer from the options given below.

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A).
• B. Both (A) and (R) are incorrect.
• C. (A) is correct but (R) is not correct.
• D. (A) is not correct but (R) is correct.

Hint:

Remember that a channel is a complex system composed of the encoding mode, the message-vehicle, and the physical carrier. This explains how it bridges the gap between sender and receiver.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
A communication channel is the physical medium used to transmit a message from a sender to a receiver.
Understanding the multi-dimensional nature of channels helps extension professionals choose the best media mix for their campaigns.

Step 2: Detailed Explanation:
Let us evaluate both statements:
- Assertion (A):
"Channels are physical bridges between the sender and receiver of the message."
This is correct.
A channel acts as a pathway or bridge that physically links the sender and receiver, enabling the encoded message to cross the distance between them.
- Reason (R):
"Dimensions of channel are: a. The mode of encoding and decoding messages; b. Message-Vehicles, and c. Vehicle carriers."
This is correct.
According to communication theory (specifically highlighted in agricultural extension models by scholars like Leagans), a channel is not a simple single pathway; it consists of three distinct dimensions:
1. Mode of transmission (encoding/decoding): Spoken word, written word, visual images.
2. Message-Vehicles: The specific package containing the message (e.g., a radio program, a news article, a lecture).
3. Vehicle carriers: The physical medium that transports the vehicle (e.g., airwaves, printed paper, a speaker).
These dimensions explain how a channel functions as a physical bridge.
Thus, both statements are correct, and (R) is the correct explanation of (A).

Step 3: Final Answer:
The correct option is (A).