Final answer:
Bonnie's activities best illustrate the mode of retreatism.
Step-by-step explanation:
The activities of Bonnie, who dropped out of school, uses drugs, and is now homeless, best illustrate the mode of retreatism.
Retreatism is a mode of adaptation in which individuals reject society's goals and means. They withdraw from society and its pursuit of financial success. Bonnie's situation of living on the street or in a homeless shelter reflects a retreatist response to society's goals and means.
This mode of adaptation is characterized by a rejection of both the goals and the means of society, leading individuals to withdraw and disconnect from societal norms and expectations.