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.
Trade and tea and castles
I believe that would be representation. The small states wanted the same number of representatives as the large states....but the large states wanted representation based on population.