With reference to Harappan seals, consider the following statements:
1. The purpose of producing seals was mainly commercial.
2. The standard Harappan seal was a square plaque 2×2 square inches, usually made from the soft river stone, steatite, but no seal was made of gold and ivory.
Which of the statements given above is/are correct?
1. 1 only
2. 2 only
3. Both 1 and 2
4. Neither 1 nor 2