Explanation:

- Semantic Barriers:

- These arise from language, symbols, or words that can be understood in different ways.

- Misunderstandings occur during message interpretation.

- Psychological Barriers:

- Personal issues and emotions impact message communication and reception.

- Examples include stress, attitude, and perception differences.

- Rational Barriers:

- ?? This is not a recognized type of communication barrier.

- Hence, it is not related to communication types.

- Organizational Barriers:

- Issues that stem from the structure and system within an organization.

- Can include hierarchy, rules, or poor communication channels.

Correct Answer: Option 3 - Rational barriers