Answer: Relationship Selling
Step-by-step explanation:
The relationship selling is also known as the consultative selling which provide the various types of sales technique and it mainly focus on building a relationship with the customers so that we can provide the effective products and the services to the consumers according to their specific requirement.
The relationship selling works on the concept of requirement based selling method and approach.
According to the question, the relationship selling involves maintaining, building and also enhancing the consumer interaction. Therefore, Relationship selling is the correct answer.