Answer:
Justice, from what I believe the judicial branch is responsible for any form of violation of one's rights, for example the dred Scott case, etc.
Explanation:
The Gupta empire was made up of
Brahims a.k.a the priests
Vaishyas a.k.a merchants and tradesman
Shudras a.k.a Peasants
Kshatriyas a.k.a warrior and rulers
The fourth choice satisfies this list.
Augustus took Julius Caesars place