Film noir ideology is rooted in which of the following?

A) optimism and belonging in the midst of the Allied victory over the Germans
B) pessimism, longing, and a sense of insecurity based on postwar adjustments
C) sadness and melancholy based on memorializing the soldiers who lost their lives in World War II
D) happiness, joy, and social mobility brought by the postwar economic boom

Film noir emerged in the post-World War II era and was marked by a pervasive sense of pessimism, anxiety, and disillusionment in the aftermath of the war. This was a time of social and economic adjustment as soldiers returned home and tried to re-establish their lives. Film noir generally reflects a sense of insecurity and alienation as characters struggle to find meaning and purpose in a world that seems confusing and hostile.