The correct answer is C. Both 1 and 2.
The Mudrarakshasa is a Sanskrit play written by Vishakhadatta in the 6th century CE. It is set in the time of the Mauryan emperor Chandragupta Maurya and tells the story of his rise to power. In the play, Chandragupta makes a treaty with the Trigarta chief Parvatak. This treaty is important because it allowed Chandragupta to gain control of the Punjab region.
Asoka was the grandson of Chandragupta Maurya and the third Mauryan emperor. He is known for his Buddhist reforms and for his promotion of non-violence. Asoka is also credited with introducing Buddhism to Himachal Pradesh.
There is evidence to support both of the statements in the question. The Mudrarakshasa mentions the treaty between Chandragupta and Parvatak, and there are Buddhist inscriptions found in Himachal Pradesh that date to the time of Asoka. Therefore, both statements are correct.