Final answer:
The four entities of Pi Kappa Phi fraternity are houses in the same building located in Charlotte, North Carolina.
Step-by-step explanation:
The subject of this question is Social Studies because it concerns the location of a fraternity in a specific state. Social Studies includes the study of geography, which involves understanding the different regions and locations.
The grade of this question is High School because it relates to knowledge of geography, which is typically covered in high school Social Studies classes.
The four entities of Pi Kappa Phi fraternity are houses in the same building located in Charlotte, North Carolina.