Answer:
She witnessed an unjust and wicked act during a peaceful demonstration
Step-by-step explanation:
Nine-year-old Audrey was observing the events that played out during a peaceful demonstration when the policemen released a dog to attack an old man who was walking in with some other people. This was an act of wickedness and injustice which made an impact on Audrey.
The attack was due to no offence of theirs but simply because they participated in a peaceful demonstration. After observing this mean act, Audrey was resolved to act on her own.