The correct option is A Bhagat Singh
Bhagat Singh was a young Indian Revolutionary who founded the Naujawan Sabha. Lala Lajpat Rai led a non-violent protest in Lahore against the Simon Commission. Saunders, a British police officer, lathi-charged the crowd, crucially injuring Lajpat Rai along with many old men, youth, children and women. He succumbed to his injuries, a few days later. Baghat Singh threw a bomb at Saunders to avenge the death of Lala Lajpat Rai. Bhagat Singh along with his companions Rajguru and Sukhdev were put to death on 23 March, 1931.