On learning about the Jallianwala Bagh massacre, ______ expressed the pain and anger of the country by renouncing his knighthood.

Rabindranath Tagore

The correct answer is Option 3- Rabindranath Tagore

Rabindranath Tagore renounced his knighthood on learning about the Jallianwala Bagh massacre. He did so as a protest against the British government's brutal and indiscriminate killing of innocent civilians.

The Jallianwala Bagh massacre took place on April 13, 1919, in Amritsar, India. British troops opened fire on a crowd of unarmed civilians who had gathered in Jallianwala Bagh to celebrate the Baisakhi festival and to protest against the arrest of two nationalist leaders.

Tagore was deeply shocked and saddened by the massacre. He wrote in a letter to the Viceroy of India, "I have felt it to be impossible to retain the title of Knighthood which has been conferred upon me by the British government."

Tagore's renunciation of his knighthood was a powerful act of defiance against the British government. It inspired many other Indians to join the struggle for independence.