The Dalit were .
A
Indo-Europeans who migrated from Central Asia around 1500 BC

B
the soldiers and their wives who made up the second highest caste

C
the lowest caste, also called the "untouchables," who had the worst jobs in the society

D
merchants and farm owners

Your correct answer is C

Explanation:

The Dalit were known be of the lowest caste and were thought of as dirty and below all others.  It is important to note that they were known to have to take care of the dead bodies that no one else would touch.  

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explanation:

the answer is a. harriet tubman was a nurse on the battlefield.