The biggest advantage of regular interaction between officer and sub-ordinates in an organization is

The correct answer is C. Regular interaction between officers and subordinates brings ground-level information, early warning of problems, and the views of the people who will actually implement a decision. Decisions taken with this input are better informed and more likely to be accepted, which is the core idea behind two-way communication and participative management in administrative theory.

• A: Subordinates may well feel more satisfied, but that is a by-product. The question asks for the biggest advantage to the organisation, and that is better decisions.
• B: Wrong direction. Regular interaction improves group relations by reducing distance and suspicion. The word 'decrement' is itself a signal that this option is meant to mislead.
• D: The opposite of the truth. Open interaction encourages subordinates to contribute, report honestly and take ownership of outcomes.

Mains angle: this connects to Herbert Simon's work on administrative decision-making and to the GS-IV theme of leadership and communication in government. It is why good administrators hold regular review meetings and field visits.

Trap: Choosing A because satisfied employees sound like the obvious benefit. Read what the question asks for: the biggest advantage to the organisation.