Which best describes how river valley civilizations influenced the development of classical civilizations?
A. Religious persecution by river valley civilizations led classical civilizations to become less religious.
B.Urbanization began in early river valley civilizations and expanded in classical civilizations.
C.Warfare between early river valley civilizations was so destructive that classical civilizations avoided it.
D.Early river valley civilizations’ distrust of foreign goods led to limited trade between classical civilizations.