Explanation:

• The people of the Neolithic age used tools and implements of polished stone. They particularly used stone axes, which have been found in large numbers throughout the greater part of the country. • Burzahom is an important Neolithic settlement in Kashmir. The Neolithic people lived here on a plateau in pits, and probably had a hunting and fishing economy. • The people of Burzahom used coarse grey pottery. It is interesting that the Burzahom domestic dogs were buried with their masters in their graves. Pit dwelling and the placing of domestic dogs in the graves of the masters do not seem to be the practice with Neolithic people in any other part of India. The earliest date for Burzahom is about 2400 B.C. • Hence option (b) is the correct answer.