Correct Answer: (a) (a), (b), (c), (d)
Solution:Jalianwala Bagh → On April 13, 1919 Massacre
Report Submission by Hunter Committee → It was made public on 8 March, 1920
Chauri-Chaura incident → On February 4, 1922
Establishment of Swaraj Party → In India, it was a political party that was founded in January 1923.