According to Carvaka, the knowledge of authority is based on which among the following?

According to Carvaka, the only valid source of knowledge is perception (Pratyaksha). They reject all other means of acquiring knowledge, such as inference (Anumana) and verbal testimony (Sabda), considering them unreliable.

Carvaka philosophy is a form of materialism in Indian epistemology, which denies metaphysical concepts like the soul, afterlife, and supernatural entities. They believe that only direct sensory experience provides true knowledge.

Since authority or testimony relies on indirect knowledge, Carvaka dismisses it. Hence, the correct answer is Perception.