Final answer:
The proper noun in the sentence is 'Principal Micah Wells.'
Step-by-step explanation:
The proper noun in the sentence is 'Principal Micah Wells'. Proper nouns are specific names of people, places, or things, and they are always capitalized. In this case, 'Principal Micah Wells' is the name of a specific person, making it a proper noun. It is important to capitalize proper nouns to show that they are referring to a particular person or entity.