What long-lasting effect did the aryans have on india? a) caste system b) great cities c) advanced works of art d) system of roads

The answer would be Caste System :) Hope this helps!

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.

i beleive that d is the right answer