Consider the following statements with reference to the Mauryan economy:
1. There was a well-developed system of taxation as mentioned in Chanakya’s Arthashastra.
2. The samaharta was the chief custodian of the state treasury and storehouse, and the sannhidata was the highest officer in charge of assessment.
3. The collection of taxes, payment of officers, exchange etc. was facilitated by punch-marked silver coins.
Which of the statements given above are correct?