Which of the following is an example of using prior knowledge?

While reading an essay about Beethoven, Julia decides she wants to learn how to play the piano.

While reading a book about the ocean, Sara remembers her trip to the Oregon Coast last spring.

While reading a novel about a soccer team, Micah recalls last summer when he tried to learn tennis.

While reading an article about forest fires, Kalvin begins to research how to prevent forest fires.