Answer: Retailer offering the contact efficiency
Explanation:
According to the given question, the given scenario is an example where the retailer offering the contact efficiency as it basically reduce the total number of the transactional attempts for providing the goods and the sevices to the customers or users.
It basically available the products in the specific location by using the intermediary system between the supplier and the customer. The contact efficiency control all the production sales in the market.
Therefore, Retailer offering the contact efficiency is the correct answer.