In which of the following ways did the environmental challenge depicted in the passage most influence the economic conditions of the 1930s for affected American populations? A:It exacerbated deindustrialization and the depopulation of older urban areas.
B:It was the primary driving force behind the movement of textile mills overseas.
C:In encouraged economic isolationism and the implementation of tariffs.
D:It increased unemployment and created a generation of transient workers.