Which statement correctly describes the origins or major features of the caste system

The only true option from the list would be that "In time a fifth group was added to the caste system--the untouchables," since this was a later development and not an initial part of the system.

Explanation:

mesopotamian code of hammurabi

and i think its 1860 b.c. you mean lol

the language dates from the contacts of arabian traders with the inhabitants of the east coast of africa over many centuries. under arab influence, swahili originated as a lingua franca used by several closely related bantu-speaking tribal groups.