The social reformer who established the Lingayat faith:

The correct answer is C. Basavanna.

Basavanna was a 12th-century social reformer and poet who founded the Lingayat faith. He was born into a Brahmin family in the village of Basavakalyan in the present-day state of Karnataka, India. He was a staunch critic of the caste system and the Brahmanical religion. He advocated for equality for all people, regardless of caste, gender, or religion. He also promoted the worship of Shiva and the use of the Kannada language.

The Lingayat faith is a monotheistic religion that is based on the worship of Shiva. It is also known as the Virashaiva faith. The Lingayats believe that all people are equal in the eyes of God and that there is no need for intermediaries between God and humans. They also believe in the importance of social reform and the need to eradicate caste discrimination.

Basavanna’s teachings have had a profound impact on the Lingayat faith and on the society of Karnataka. He is considered to be one of the most important figures in the history of Karnataka.

Madhvacharya was a 13th-century Hindu philosopher and theologian who founded the Dvaita Vedanta school of thought. He was born in Udupi, Karnataka, India. He was a staunch critic of the Advaita Vedanta school of thought, which he believed was heretical. He also advocated for the worship of Vishnu and the use of the Sanskrit language.

Sri Ramanujacharya was a 12th-century Hindu philosopher and theologian who founded the Visistadvaita Vedanta school of thought. He was born in Sriperumbudur, Tamil Nadu, India. He was a staunch critic of the Advaita Vedanta school of thought, which he believed was heretical. He also advocated for the worship of Vishnu and the use of the Sanskrit language.

Akka Mahadevi was a 12th-century Indian poet and social reformer. She was born into a Brahmin family in the village of Udugamani in the present-day state of Karnataka, India. She was a disciple of Basavanna and a staunch advocate for the rights of women. She is considered to be one of the most important figures in the history of Kannada literature.