निम्नलिखित में से कौन सी उपभोक्ता आवश्यकता 'संज्ञानात्मक संरक्षण प्रेरणा' (Cognitive preservation motive) की श्रेणी में आती है?

A person within a reference group who exerts social influence on others due to special skills, knowledge, personality, or other characteristics is known as a/an:

Cognitive dissonance in consumer buying behavior occurs primarily during which stage of the Buyer Decision Process?