- Outports are inland transportation terminals not directly connected to sea routes (e.g., Duisburg, an incorrect example).
- Ports of call (e.g., Piraeus) are stopping points for ships, not necessarily oil shipping or naval hubs.
- Oil ports, like Tripoli (Libya), are specifically for oil export, making it the correct match for "Oil Ports." - Naval ports (e.g., Kolkata) are military installations with strategic importance, unrelated to oil exports.
Therefore, (C) is correct, with Tripoli exemplifying an Oil Port.