Which of the following features distinguish Mahajanapadas from Janapadas?
- Mahajanapadas had fortified cities.
- Janapadas did not collect regular taxes.
- Mahajanapadas maintained standing armies.
- Janapadas were larger and more prosperous than Mahajanapada
1
only 1,2,3
2
only 2 and 3
3
only 3
4
only 4