Q.'In Harappan Civilization exchange were regulated by a precise system of weights, usually made of a stone called chert and generally cubical, with no markings.' In the light of the above statements what do the Harapan weights indicate? (A) Lower denominiations of weights were binary (B) Higher denominations followed the decimal system (C) Smaller weights were probably used for weighing jewellery and beads (D) Metal scale-pans are missing from Harappan sites Choose the correct answer from the code given below:
Correct answer: (A), (B) and (C)