Ritzer Listed Nineteenth Century Events Including Political Revolutions, the Rise

Ritzer listed nineteenth century events including political revolutions, the rise of socialism, the growth of science and the movement for women's rights to make what point?

A) The nineteenth century was the most important period of societal development
B) Politics was more important than sociological theory in the nineteenth century
C) Sociological theory promoted many changes, causing upheavals to happen in society
D) Sociological theory did not develop in isolation; it was closely related to societal change