If the statement above concerning oil-supply disruptions is true, which of the following policies in an open-market nation is most likely to reduce the long-term economic impact on that nation of sharp and unexpected increases in international oil prices?
Option: (d)
Author clearly points out that import would not impact the rise of prices. It indicates that whether the oil is manufactured in the country itself or is bought from outsode doesn't matter. All the other choices get eliminated here.