Answer: Systems selling
Step-by-step explanation:
The system selling is one of the type of business strategy that helps in understanding the selling process by sell he various types of products an the services in the market in the interrelated manner rather than independently.
According to the given question, the system selling is the concept in which the business deliver the goods by using the interlocking and also consolidating the products from the supplier.
Therefore, System selling is the correct answer.