Which of the following accurately lists transitions in western Europe in the order in which they happened? A. the Crusades-> the emergence of the feudal system -> the decline of the Roman Empire-> the emergence of towns and a middle class B. the emergence of towns and a middle class -> the Crusades-> the decline of the Roman Empire-> the emergence of the feudal system C. the decline of the Roman Empire -> the emergence of the feudal system -> the Crusades -> the emergence of towns and a middle class D. the emergence of the feudal system -> the decline of the Roman Empire -> the emergence of the feudal system -> the Crusades
