Problem: Define consumer behavior and discuss the underlying premise of consumer behavior, the marketing concept. Why is consumer behavior rooted in the marketing concept? Support your position in a minimum of 200 words. Respond to at least two of your classmates' posts with substantive posts. Posting "I agree" postings will not be eligible for participation credit. Instead, your responses should further along the discussion by providing an illustration or experience or, in some cases, constructively disagreeing.