Ans: B.Treaty of Madras 

Exp: In 1767 Mysore was a powerful state under Hyder Ali. In 1769, the first Anglo-Mysore war was fought in which Haider Ali defeated the British and Treaty of Madras was signed between them. Haider Ali occupied almost the whole of Carnatic.

The Treaty of Madras was a peace agreement signed on 4 April 1769 between Mysore and the British (Lord Verelst) East India Company which brought an end to the First Anglo-Mysore War. Fighting had broken out in 1767 and the forces of Hyder Ali had come close to capturing Madras at one point.