Final answer:
Option C is true regarding an import-oriented distribution structure. It involves a chain of intermediaries performing specific activities and selling to smaller units until reaching the consumer.
Step-by-step explanation:
An import-oriented distribution structure refers to a system where goods are imported from outside the country and distributed within a local market. Of the statements provided, option C is true regarding this distribution structure. It states that the idea of a channel as a chain of intermediaries performing specific activities and each selling to a smaller unit beneath it until the chain reaches the consumer is common in an import-oriented distribution structure. This means that there will be multiple intermediaries involved in the distribution process, such as importers, wholesalers, and retailers.