Khushal Khan Khattak was a poet of

Khushal Khan Khattak known as the warrior poet of the seventeenth century expressed his ideas in Pushto. He wrote about freedom honor and cultural pride of the Pashtun people. His poetry combined themes of resistance against Mughal authority with reflections on ethics and tribal unity. He is celebrated as a national poet among Pashtuns and continues to influence literature and identity in the region. The correct language of his works is Pushto which corresponds to option C in this question.