Which 13th-century musicologist authored the 'Sangita Ratnakara', a monumental Sanskrit treatise on music and dance that remains a foundational reference for both Hindustani and Carnatic traditions?

• A Sharangadeva ✓
• B Bharata Muni
• C Matanga
• D Purandara Dasa

Sharangadeva's Sangita Ratnakara (Ocean of Music), written in the 13th century at the Yadava court, is one of the most important medieval texts on Indian musicology and aesthetics.