The heading that best confirms her prediction is C. Exercise and Relaxation.
Explanation:
It is common for readers to make predictions about the text they are going to read based on information previously collected. Reading the headline and skimming the text for some cue words help indicate the path the author has likely followed. <u>Suppose Marissa knows the text is about firefighter, either because she skimmed it or because someone told her so. If she reads the headline "Exercise and Relaxation", she will probably predict the text is not about what firefighters do while helping in an emergency, but about what they do on their free time.</u>
The other options wouldn't lead her prediction down the same path. "Ranks and Insignia" could be about hierarchy and medals/prizes for performing well; Essential Equipment would inform readers on what objects are necessary for a firefighter to do his job; Types of Trucks, as the headline says, would discuss the different types of firetrucks, their advantages and disadvantages. To lead someone to predict the text will address what firefighters do when there is not an emergency, the best option is really "Exercise and Relaxation".
