Answer:
The very last sentence
Explanation:
It was her grandfather's stories about his time in the Navy that prompted her father to join the Navy. It is this sentence because if her grandfather didn't join the Navy and tell his stories, her father would have never done it.
Well, from my experience, it would be prewriting. Prewriting is where you come up and brainstorm ideas. Its when you scribble ideas and write out a plan on the direction that you want your paper to head to, where you would write a list or draw a picture on key points you want to hit on the paper.
