The economy of Colonia has been in recession for the past eight years. Most companies that have not been forced into bankruptcy have survived thanks to the high efficiency of the employees they retained, which helped the companies control costs. In recent months, however, the Colonian economy has begun to recover, and companies are beginning to expand their workforces. Colonia, ttherefore, will soon experience a drop in average worker efficiency, since __. Which of the following, if true, most logically complete the argument? ['People who have been employed throughout the recession will, no doubt, continue to be employed.', 'Most companies will find that few of the workers available for hiring are as efficient as those they retained during the recession.', 'Many companies that were forced into bankruptcy in the past eight years had a fair number of efficient workers.', 'Colonia is expected to begin importing more goods from other countries.']