Concept:The target of all marketing efforts is the person who ultimately buys or uses the product—the consumer.
Explanation:Marketing begins with understanding consumer needs and wants.
Every activity—product development, pricing, promotion, and distribution—is designed to satisfy the consumer.
Producers and middlemen exist to serve the consumer, not the other way around.
Even when a business sells to distributors or retailers, the final aim is to reach the end user.
Thus, consumer satisfaction is the central goal of all marketing activities.
Answer:A. consumer