Coins of Indo-Greek rulers have been found from which place of Haryana?

The correct answer is B. Khokhrakot (Rohtak).

Coins of Indo-Greek rulers have been found from Khokhrakot, a village in the Rohtak district of Haryana. These coins are made of silver and copper and bear the names of several Indo-Greek rulers, including Menander, Strato I, and Agathocles. The coins are evidence of the Indo-Greek presence in Haryana and the trade that took place between the Indo-Greeks and the local people.

The other options are incorrect. Karnal is a city in the Karnal district of Haryana. Mewat is a region in the southern part of Haryana. Hansi is a city in the Hisar district of Haryana.