Most People Are Homeless Because They

Most people are homeless because they

A) cannot afford housing and lack a regular source of income, perhaps because of job loss, mental illness, or family problems.
B) cannot afford medicine and lack a middle-class source of income, usually because of mental illness, pregnancy, and family problems.
C) fail to achieve the level of "survival of the fittest" as prescribed by social Darwinism.
D) cannot afford a college education, which is required in order to obtain and maintain a steady job in the United States.
E) are lazy or lack the kind of work ethic that wealthy people have.