Which of the following statements accurately describes the Heterodox (Nāstika) Schools of Indian Philosophy?
AThey uphold the authority of the Vedas and form part of the orthodox (Āstika) tradition.
BThey emerged in alignment with the ritualism and spiritual idealism of Vedic teachings.
CThey arose from the Śramaṇa movement and are characterized by their rejection of Vedic authority.
DThe primary branches include Vedanta, Samkhya, and Nyaya schools.
