Concept:The classification of constitutions began with Aristotle, who grouped them by their aim: the common good or personal interest.
Explanation:Aristotle, the Greek philosopher, was the first to systematically classify constitutions.
He divided them into two broad categories based on whether they served the common interest or the rulers' private interest.
The first category is the right or ideal form, where government aims for the common good.
The second category is the wrong or perverted form, where government serves personal or selfish interests.
This early framework laid the foundation for later studies of constitutional systems.
Answer:The earliest classification of constitutions was the work of Aristotle.
Correct option: A.