Which was the most prevalent mode of the post-classical world: exchange, imitation. or rejection?

The Post-Classical era was the time between the 5th and 15th centuries C.E.The most prevalent mode of the Post-Classical world were EXCHANGE AND IMITATION. During this time, a world network was developed. The international trade allowed intellectual and material exchanges. These exchanges paved the way for imitation of established centers. Less organized civilizations attempted to imitate the more organized civilizations. 

the answer you are looking for is letter c. he supported the idea of a un-run war in serbia to bring peace to the area.

supporting this idea was an important step that bill clinton took in order to attempt to secure bosnia and keep the peace there. he led peace reconciliations -known as the dayton agreement- leaving bosnia as a single state made up of two parts with one central government.