Consider the following statement :The acceptance of a communication as authoritative by individuals in organisations depends upon :

1. Zone of indifference to the nature of authority.
2. Its clarity for purposes or understanding.
3. Its incompatibility with personal interests.
4. Its inconsistency with organisational purpose. Which of these are correct?

According to Chester Barnard's theory of authority, a communication is accepted as authoritative if the subordinate understands it, believes it is consistent with organizational purposes, finds it compatible with personal interests, and can comply with it within their zone of indifference. Statements 1 and 2 directly align with the valid criteria for authority acceptance, while statements 3 and 4 contradict necessary conditions (compatibility and consistency are required, not incompatibility or inconsistency).