Final answer:
The given question does not pertain to any specific subject, but instead focuses on personal experiences and perceptions.
Step-by-step explanation:
In the given question, Kamau is being asked about the changes that have occurred in the five years he has been away and what has remained the same. This question does not pertain to any specific subject but instead focuses on personal experiences and perceptions. Therefore, it does not fall under any particular subject like Mathematics or History.
The question can be approached from a sociological standpoint to examine how individuals change and remain the same over time. It may also be analyzed in relation to psychological development.
Since the question is open-ended and subjective, the answer will vary depending on the person's experiences and perspective.