Why were southern states concerned about congress controlling foreign trade? a: they relied heavily on foreign imports of rice and tobacco. b: they feared that congress would continue the slave trade. c: they feared northern states would take over their foreign markets. d: they relied heavily on foreign exports of rice and tobacco.

A. They relied heavily on foreign imports of rice and tobacco.

Southern states were concerned by this matter because: A) They relied heavily on foreign imports of rice and tobacco.

Those states had this concern because their economy had strong foundations on such imported products, and if the congress made at some point the decision of taxing these products, their economy would have had problems. Also, another concern was that southern states needed a great number of slaves and the congress may forbid slave traders to bring slaves into the country.

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