It provides background information on the topic.
and It gives the main topic of the paper.
There are five elements of a plot: Exposition, conflict, raising action, climax, falling action and Resolution. From these elements, the one that approaches best to that excerpt is Resolution. The word "finally" can be a signal word that denotes the ending part and Resolution means that the conflict has been solved and indicates the ending, which it really makes sense, since after all the things happened in Jake's life, at the end "I expect we'll need three servings of bacon today" refering maybe to a happy ending.
The answer is their. Their is when something belongs to them.
They're: They are
There: Over THERE
Their: belongs to someone
Answer is D