The correct option is B Amritsar
On April 13, General Dyer opened fire on the public which had gathered at Jallianwala Bagh, Amritsar for the celebrations of Baisakhi Festival. He ordered his troops to attack in lieu of the Martial Law passed by the General to prevent any revolt or protest against the British. Jallianwala Bagh in Amritsar became the unfortunate site for the massacre.