In the conversation between Bhrigu and Bharadvaja in the epic Mahabharata, what does Bhrigu quote as the identity for difference in Caste?

Skin colour

The correct answer is Option (3) → Skin colour

When, in the Mahabharata, Bhrigu tells Bharadvaja that caste division relates to differences in physical attributes of different human beings, reflected in skin colour, Bharadvaja responds not only by pointing to the considerable variations in skin colour within every caste (‘if different colours indicate different castes, then all castes are mixed castes’), but also by the more profound questions: “We all seem to be affected by desire, anger, fear, sorrow, worry, hunger and 37 BOX 3.1 labour; how do we have caste differences then?”