The correct answer is option 3, Samavedic Samhita. The origins of Indian music can be traced back to the Samavedic Samhita. The Samaveda is one of the four Vedas, which are ancient Indian texts. It is a collection of hymns and chants that were meant to be sung during religious rituals. The Samaveda is unique because it focuses on the musical aspect of these hymns. It contains detailed instructions on the melodies, rhythms, and scales that should be used when singing these hymns. This emphasis on music in the Samaveda is significant because it suggests that music has always been an integral part of Indian culture and spirituality. Therefore, the Samavedic Samhita is where the origins of Indian music can be traced.