4. Which of the following is/are associated with the Megalithic culture of South India ?
1. Burials enriched by boulders of stone.
2. Use of black and red ware.
3. Introduction of punch-marked coins.
4. Urban settlements.
Select the correct answer using the codes given below :
(a) 1 only
(b) 1 and 2
(c) 2 and 3
(d) 4 only