A) France
B) Italy
C) None of these
D) US
🧠 Explanation:
- Diego Garcia is a strategically important military base located in the Indian Ocean.
- It is operated by the United States, although the island is part of the British Indian Ocean Territory.
- The base plays a key role in U.S. military operations in the Middle East and Asia.
- It is not open to the public and is used for defense, logistics, and surveillance missions.