The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
The winged bean (Psophocarpus tetragonolobus) is a herbaceous, nitrogen fixing tropical Asian legume. Its seeds, pods, leaves, and tuberous roots, have high amounts of proteins. are edible by humans, and also relished by livestock. It is widely cultivated in India. Its nutritive value is close to soybeans. Thus, Option B is correct.