Correct Option: C

Known as the Letter of Victory, Zafarnama was written in Persian by Guru Gobind Singh as a letter of defiance and delivered to the Mughal Emperor Aurangzeb in 1707. It was composed by Guru Gobind Singh in one of the darkest times for the Sikhs. Guru Gobind Singh had lost his four sons, while most of the Sikhs had either been scattered or killed on the battlefield.. The letter praises God and then outlines the bloody battle of Chamkaur and the treachery of Aurangzeb and the Mughals who broke their oath not to attack the Sikhs.