Correct Answer:
Option C - Most of the standard Harappan seals were made of steatite, Steatite is a kind of soft stone that was square in shape with a 2×2 dimension and was used for commercial purpose.
C. Most of the standard Harappan seals were made of steatite, Steatite is a kind of soft stone that was square in shape with a 2×2 dimension and was used for commercial purpose.