Mark each statement if it correctly describes the origins or major features of the caste system.
a. In time a fifth group was added to the caste system--the untouchables.
b. Subcastes developed within the caste system.
c. People in all classes had the same duties.
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.
