We can actually deduce that the previous event foreshadowed this decision is: Her father's words to her which tells her that there is power in self-sacrifice.
What is foreshadowing?
Foreshadowing is known as a literary device that is used by authors to provide a hint of what will happen later in a story. Foreshadowing also help to build suspense as the reader will be enthusiastic to know how such event will play out.
We can see here the event of her father telling her that there is power in self-sacrifice foreshadowed her decision.
Learn more about foreshadowing on https://brainly.com/question/25079664
