Answer:
d. Retailing
Explanation:
Retailing is selling of a product to the last consumer known for the product generally. As this is the last stage of a distribution channel maximum people are involved.
Further retailers requires the least investment in the distribution chain as compared to other processes.
Whole sellers require huge amount also that the purchaser requires huge amount.
Retailing business is the last step of the distribution channel and maximum people are doing this business.
