Which of the following statements about the Harappan economy are correct ?
I. Urban centres provide remains of organized craft production.
II. Use of iron tools for agriculture was common.
III. Evidence of seals indicates long distance trade.
IV. Standardised weights point towards regulated trade contacts.
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The Harappans were uware of iron. If an option mentions iron tools in the context of the Harappan civilization, it is instantly incorrect!