Which of the following schools of philosophy was originally known as Lokayata and Brahaspatya?

Answer: [A] Charvaka

Charvaka system was originally called Lokayat or Brahaspatya. This school may be called one of the oldest school of Indian materialism. It rejects Vedas, rejects ritualism of Vedas and does not believe in god or any other super natural power. Ajita Kesakambali is thought to be the first Caravaka while Brihaspati is called its founder. Most of its literature is now lost and it is also not a living tradition as of now. It was called Lokayata because it was prevalent (ayatah) among the people (lokesu), and meant the world-outlook of the people

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