Which one of the four varnas mentioned in the Purushasukta of the mandala X of the Rig Veda is referred in the other parts of Rig Veda in the sense of a Varna?

Answer: Option D

Shudra is the fourth varna, or one of the four social categories found in the texts of Hinduism. Various sources translate it into English as a caste, or alternatively as a social class. It is the lowest rank of the four varnas.