Option b is the correct answer. The Thyagaraja festival is an annual aradhana (a Sanskrit term meaning act of glorifying God or a person) of Telugu saint composer Tyagaraja. He was one of the most influential composers of Carnatic music and is regarded as one of the trinity of Carnatic music. The music festival is observed in the states of Andhra Pradesh, Karnataka and Tamil Nadu, primarily in Tiruvaiyaru in Thanjavur district of Tamilnadu, the place where Tyagaraja attained Jeeva Samadhi. The festival is held every year on the anniversary of the demise of the saint, which is on Pushya Bahula Panchami day (the fifth day of the waning moon in the Hindu lunar month of Pushya). The festival attracts thousands of musicians and devotees who pay homage to Tyagaraja by singing his compositions and offering prayers at his memorial. Important Tips Trinity of Carnatic music: The Trinity of Carnatic music, also known as the Three Jewels of Carnatic Music, refers to the outstanding trio of composer-musicians of Carnatic music in the 18th century - Tyagaraja, Muthuswami Dikshitar, and Syama Sastri. Tyagaraja (1767-1847) is regarded as the greatest composer of Carnatic music and one of the most prolific composers in the history of music. He composed over 24,000 songs, mostly in Telugu and Sanskrit, in praise of Lord Rama. Muthuswami Dikshitar (1775-1835) was a master of Sanskrit and a scholar of Vedanta, astrology, and music. He composed over 500 songs, mostly in Sanskrit and Manipravalam (a mixture of Tamil and Sanskrit), using the signature Guruguha. Syama Sastri (1762-1827) was a devotee of Goddess Kamakshi and a master of laya (rhythm). He composed over 300 songs, mostly in Telugu and Sanskrit, using the signature Syama Krishna