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Athens was noted for trading olive oil and wine. They produced these goods in large quantities and had a high reputation for their quality. Athens would trade olive oil and wine for goods they needed, such as grain, which was often imported from regions like Egypt and the Black Sea areas because the local agricultural production could not fully meet the demand of the city's population.
So, the correct response to the question "Which goods did Athens trade for other goods they needed?" is:
olive oil and wine