Consider the following statements regarding the agriculture of Harappan Civilization and choose the correct options from the alternatives given below:
1. Traces of canals were found at Shortughai in Afghanistan.
2. Some areas of Harappan civilization witnessed well irrigation.
3. Harappan civilization did not know the art of multicropping farming.
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3 only