The correct pair is (C) Oil Port - Esskhira. Esskhira is a major oil port located in Algeria, known for handling oil shipments.
- Option (A) is incorrect because Abadan is a major refinery port in Iran but not a naval port.
- Option (B) is incorrect because Kochchi is an entrepot port in India, but not associated with the traditional role of an entrepot port.
- Option (D) is incorrect because Dover is a commercial port, but it is not typically classified as a “commercial port” in this context. Thus, the correct option is (C).