Final answer:
An intermediary firm acts as a middleman between an ocean carrier and a shipper, facilitating the transportation of goods.
Step-by-step explanation:
An intermediary firm is an intermediary between an ocean carrier and a shipper. It acts as a middleman, facilitating the transportation of goods from the shipper to the ocean carrier. This firm helps match shippers with available space on ocean vessels and negotiates rates and terms on behalf of the shipper.
For example, if a shipper wants to transport goods overseas, they can turn to an intermediary firm to find available space on an ocean carrier's vessel and arrange the necessary transportation logistics. The intermediary firm will negotiate rates and coordinate the shipment to ensure that the goods reach their destination efficiently.
Therefore, the correct answer is Option d. Intermediary firm.