Correct Answer:
C. United Kingdom
Buckingham Palace is one of the most iconic and recognizable royal residences globally. It is the official London residence and administrative headquarters of the monarch of the United Kingdom. Located in Westminster, London, it serves as a focal point for national celebrations and crises, and is a major tourist attraction. The palace is a powerful symbol of the British monarchy and its rich history, having been the official residence of the UK's sovereigns since Queen Victoria's accession in 1837.
- France is a republic and does not have a reigning royal family; its historical royal residence was the Palace of Versailles.
- Germany is also a republic and does not have a royal family or a royal residence akin to Buckingham Palace.
- Therefore, 'None of these' is incorrect, as the United Kingdom is the correct answer.