Why was it important that the Harappans developed standardized weights and measures?

Hich answer supports the statement, "the state constitution is more detailed than the u. s. constitution"? a) the u. s. constitution was created after state constitutions had been established. b) the u. s. constitution only exists because the state constitutions allowed it to be created. c) the articles in the state constitution do not deal with amendments like the u. s. constitution does. d) the articles in the state constitution deal with more specific issues than does the u. s. constitution.