The correct answer is (a) Chandra Shekhar Azad.
Chandra Shekhar Azad was a revolutionary who was involved in the Kakori Conspiracy Case. He was the only one of the conspirators who escaped arrest by the police. He continued to fight for Indian independence until his death in 1931.
Sachindra Nath Sanyal was also involved in the Kakori Conspiracy Case, but he was arrested and sentenced to life imprisonment. He was released from prison in 1920.
Roshanlal was also involved in the Kakori Conspiracy Case, but he was arrested and sentenced to death. He was executed in 1927.
Jogesh Chandra Chatterjee was not involved in the Kakori Conspiracy Case. He was a freedom fighter who was involved in the Non-Cooperation Movement. He was arrested and sentenced to two years in prison.
The Kakori Conspiracy Case was a case in which a group of revolutionaries robbed a train in Kakori, Uttar Pradesh, India, on 9 August 1925. The money from the robbery was to be used to fund the Indian independence movement. The conspirators were arrested and tried, and many of them were sentenced to death. However, Chandra Shekhar Azad escaped arrest and continued to fight for Indian independence until his death in 1931.