The correct option is D Both (A) and (C)
General Dyer passed an Act on April 13, 1919, named the martial law stating that no more than 2 people can form a group and meet at a place. This act was enacted to prevent any form of a mobilised protest against the ruling authorities. This coincided with the Sikh festival of Baisakhi, where they had gathered at jallianwala Bagh for celebrations, upon which General Dyer open fired on people present there.