An allegory is a story that uses characters and settings as symbols that carry a deeper meaning beyond the obvious meaning of the story. Which excerpt from Nathaniel Hawthorne’s "Dr. Heidegger's Experiment" best reveals the allegorical nature of this short story?

Syllable added to a root word to change its meaning : affixan independent word--example run,walk,book : free morphemeaffix that gives grammatical meaning such as tense or number : inflectiona word part that must attach to a word in order to be usable : bound morphemedegree of comparison formed by adding -er or more to an adjective : comparativedegree of comparison formed by adding -est or most to an adjective : superlativeaffix added to the beginning of a word : prefixaffix added to the end of a word : suffixroot word of lovable : lovetwo roots used together to form one word : combining form

D. subjects and predicates : )