Final answer:
The best conclusion for the narrative provided is the sentence that directly relates to the situation with the car and offers a logical end to the story, which is option C about the father teaching Thomas how to change a tire.
Step-by-step explanation:
In the context of the narrative paragraph provided, the sentence that offers the best conclusion would be one that is directly related to the events unfolding, particularly the incident with the car. Amongst the provided options, the conclusion that fits this criterion is option C, which mentions the father teaching the narrator, Thomas, how to change a tire. This ending not only follows from the father's indication that they have a spare tire but also provides a logical and relevant ending to the story that contributes to the character's development. The other options are unrelated tangents that do not directly resolve or conclude the situation at hand.Therefore, the best concluding sentence for the narrative paragraph is: "It was that day my dad taught me how to change my first of many flat tires."