Which of the following features characterize the pre-Mauryan (6th century B.C to 4th century B.C) period in north India?
1. Punch marked coins
2. Guild system
3. Paddy transplantation technique
Select the correct answer using the code given below.
1
1, 2 and 3
2
1 and 3 only
3
2 and 3 only
4
1 and 2 only