Answer:
Letter a is correct. They were overproducing goods
Step-by-step explanation:
With the economic growth in the USA, the 1920s was a decade marked by a euphoria of consumption, from that came a rampant consumerism due to the ease of obtaining credit. Thus increasing industrialization increased and worker productivity also increased, but wages did not increase at the same rate as the economy, which generated an overproduction of goods that could not be consumed and absorbed by the economy, which generated the great depression.