The correct answer is C. Interjection
Step-by-step explanation:
In language, an interjection is a word that is not part of a sentence but is used to express strong emotions or feelings in an exclamatory way. Due to this, interjections are usually followed by an exclamation mark (!) and is not related grammatically to the main sentence, although it provides meaning to it. In the case of the underlined word "Yes! this can be identified as an interjection because it expresses strong emotion, is not part of the main sentence "Someone is preparing jambalaya in the kitchen" and it is followed by an exclamation mark that shows the word is an interjection.