One of the Major Differences Between Classical Sociological Theory and Contemporary

One of the major differences between classical sociological theory and contemporary sociological theory is that:

A) Classical theory was not interested in struggle and conflict, whereas contemporary theory is
B) Classical theory was a systematic effort to better understand the world in which we live by examining it through a particular lens, whereas contemporary theory is an attempt to better understand how and why we construct the social worlds in which we live
C) Classical theory was preoccupied with culture and the ways in which it integrated members of society, while contemporary theory focuses on structures that tie people together
D) Classical theory was an attempt to better understand how and why we construct the social worlds in which we live, whereas contemporary theory is was a systematic effort to better understand the world in which we live by examining it through a particular lens.