The correct option is B The British were in a war with the French and Hyder Ali.
Puli Thevar, along with the Tirunelveli Palayakkars, were involved in a war against the Nawab between 1756 to 1763. The Nawab sent Yusuf Khan to fight against Puli Thevar. But this did not take place immediately as Yusuf Khan did not have heavy artillery. This artillery came in September 1760 because the British were involved in a war against the French and Hyder Ali.