A Constitution is written in order to secure a compromise. The importance of this compromise is that it is defining the rights of citizens and the principles and powers of government (D).
A written Constitution serves to establish and to concretize the powers that are making it. It is written so it can be read by everyone and especially because this turns it into something permanent. It is a way to make a lasting compromise between all that participated in its writing.
Expanded trade, regional empires, and increased global trade are all effects of which of "<span>b. the transition from river valley civilizations to classical civilization," since classical civilizations engaged in more far-reaching trade and cultural diffusion. </span>
