The most accurate response is:
Some Indians responded to the Rowlatt Acts with violence against European civilians, which led Dyer to retaliate by killing Indian civilians.
The Rowlatt Acts were met with widespread anger and protests in India, which escalated tensions. In response to violence against British officials, General Dyer ordered the troops to fire on the crowd at Jallianwala Bagh, leading to the tragic Amritsar Massacre.