Option b is the correct answer. The Treaty of Chittor was signed in 1615 AD between the Mughal emperor Jahangir and Rana Amar Singh of Mewar. The treaty was signed after a long and bloody conflict between the Mughals and the Mewar Rajputs. The treaty stipulated that the Rana would accept the suzerainty of the Mughal emperor, but would be allowed to retain his independent rule over Mewar. The treaty marked the end of the Mughal-Mewar conflict and it helped to secure the Mughal Empire's borders in Rajasthan. The treaty also helped to improve relations between the Mughals and the Rajputs, and it paved the way for a period of cooperation between the two powers.