Answer:
A. Channel of distribution
Step-by-step explanation:
"A distribution channel is a chain of businesses or intermediaries through which a good or service passes until it reaches the final buyer or the end consumer. Distribution channels can include wholesalers, retailers, distributors, and even the Internet."
Reference: Kenton, Will. “How Distribution Channels Work.” Investopedia, Investopedia, 20 Sept. 2019