Which of the following represents frictional unemployment? i. The demand for refrigerators falls when the economy enters a recession and refrigerator manufacturers lay off some of their workers. ii. General Motors decides to close its U.S. factories and relocate its car manufacturing division to Mexico. iii. After quitting your job in Ohio to be closer to your family in California, you are now looking for a new job. iv. Carla’s boss recently fired her for doing a poor job and she hasn't yet found a new one. Group of answer choices