The head of a Gram Panchayat in Meghalaya is often called the:

The correct answer is: b) Waheh Chnong.

A Waheh Chnong is the head of a Gram Panchayat in Meghalaya. A Gram Panchayat is a village-level government body in India. It is responsible for the development and welfare of the village. The Waheh Chnong is elected by the villagers and is responsible for the day-to-day administration of the village.

The other options are incorrect. A Sarpanch is the head of a Gram Panchayat in other states of India. A Sordar is a village headman in the North-East Indian state of Assam. A Block Development Officer is a government official responsible for the development of a block, which is an administrative unit smaller than a district.