As living standards continue to improve world wide, the demand for plastic products will inevitably increase. As demand for plastic products increases, United States petrochemical companies, most of which are located along the Gulf Coast, will increase production of the petrochemicals from which plastics are made. Yet economists predict that, even as these companies increase production, the currently high rate of unemployment in communities along the Gulf Coast is unlikely to decline.
Which of the following, if true, would offer the greatest support for the economists’ prediction?
(A) Falling oil revenues have forced oil producing nations in the Middle East to scale back plans to expand their petrochemical industries.
(B) Competition among Gulf Coast petrochemical products.
(C) Foreign markets are dependent on United States petrochemicals shipped from Gulf Coast ports.
(D) The highly automated petrochemical plants along the Gulf Coast can be operated by only a few people.
(E) Past increases in domestic demand for plastic products made by United States companies have promoted petrochemical companies along the Gulf Coast to expand their plants and hire additional workers.