I think the correct answer is 'A', instead of B. Answer B violates the parallelism as three items are not in parallel. Please help me out....

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.
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(A) based on cultivating such crops like corn and
beans, the harvesting of fish and shellfish, and
exploiting
(B) based on the cultivation of such crops as corn
and beans, the harvesting of fish and seafood,
and the exploitation of
(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
like corn and beans, their harvest of fish and
shellfish, and they exploited<i class="em em-confused"></i><i class="em em-confused"></i>