The Carnatic Trinity — the three pillars of South Indian classical music — consists of: (AFCAT PYQ)
ATansen, Amir Khusrau, and Thyagaraja
BRavi Shankar, Bismillah Khan, and Hariprasad Chaurasia
CThyagaraja, Muthuswami Dikshitar, and Syama Sastri
DBhimsen Joshi, Rashid Khan, and Zakir Hussain