Answer:
Correct statement is (B)
Explanation:
Marketing channel is the combination of all the people who are responsible for delivery or reach of the product from producer to the last consumer.
Thus, it is a chain from producer to wholesaler to retailer and then to consumer.
Marketing channel makes sure about the market present for the next level. That is for producers it provides wholesalers, for wholesalers it provides retailers and to retailers it provides consumers.
Thus, statement (B) is correct.