The correct answer is A. 1780-84 A.D.
The Second Anglo-Mysore War was a conflict fought between the British East India Company and the Kingdom of Mysore from 1780 to 1784. The war was fought over control of the Carnatic region of southern India. The British were led by General Eyre Coote, while the Mysore forces were led by Hyder Ali and his son Tipu Sultan.
The war began when Hyder Ali invaded the Carnatic in 1780. He captured several British forts and towns, and inflicted heavy losses on the British forces. The British were eventually able to turn the tide of the war, and they defeated Hyder Ali at the Battle of Porto Novo in 1781. However, the war dragged on for another three years, and it was not until 1784 that the Treaty of Mangalore was signed, ending the conflict.
The Second Anglo-Mysore War was a costly conflict for both sides. The British lost thousands of soldiers, and they also spent a great deal of money on the war. The Mysore kingdom was also devastated by the war, and it lost much of its territory.
The Second Anglo-Mysore War was a significant event in the history of India. It showed that the British East India Company was a powerful force in the region, and it also led to the rise of Tipu Sultan, who would become one of the most formidable opponents of the British in India.
The other options are incorrect because they do not correspond to the actual dates of the Second Anglo-Mysore War.