The correct answer is: D. 1814 AD.
The Anglo-Gorkha War was a conflict between the British East India Company and the Kingdom of Gorkha, which took place from 1814 to 1816. The war was fought over control of the Himalayan region, and resulted in a British victory.
The war began when the British East India Company sent a force to Nepal in an attempt to annex the country. The Gorkhas resisted the British, and the war dragged on for two years. In 1816, the British and Gorkhas signed the Treaty of Sugauli, which ended the war. The treaty gave the British control of most of the Himalayan region, and the Gorkhas were forced to pay a large indemnity to the British.
The Anglo-Gorkha War was a significant event in the history of both the British East India Company and the Kingdom of Gorkha. The war resulted in the British gaining control of a large part of the Himalayan region, and it also led to the decline of the Gorkha kingdom.
The following are the possible answers to the question:
- A. 1809 AD: This is incorrect because the Anglo-Gorkha War did not take place in 1809 AD.
- B. 1810 AD: This is incorrect because the Anglo-Gorkha War did not take place in 1810 AD.
- C. 1812 AD: This is incorrect because the Anglo-Gorkha War did not take place in 1812 AD.
- D. 1814 AD: This is the correct answer because the Anglo-Gorkha War took place in 1814 AD.