Specific query in below question: I understand that option B is best. But how is it that the list can be considered as parallel: Cultivation, Harvesting and Exploitation

Building on civilizations that preceded them in coastal Peru, the Mochica developed their own elaborate society, based on cultivating such crops like corn and beans, the harvesting of fish and shellfish, and exploiting other wild and domestic resources.


B. based on cultivation of such crops like corn and beans, the harvesting of fish and shellfish, and the exploitation

C. and basing it on the cultivation of crops like corn and beans, harvesting fish and seafood, and the exploiting of

D. and they based it on their cultivation of crops such as corn and beans, the harvest of fish and seafood, and exploiting

E. and they based it on their cultivating such crops such as corn and beans, their harvest of fish and shellfish, and they exploite