Miles Has Been Working on an Assembly Line in a Car

Miles has been working on an assembly line in a car manufacturing factory in the United States for the last thirty years.Which of the following trends is he most likely to have witnessed?

A) An increasing amount of the parts assembled at the plant are made in the United States.
B) The factory has increased its production in the plant, which has required management to hire more blue-collar workers.
C) Many of the activities that were formerly carried out in the plant have been outsourced to other countries.
D) The new workers who are hired in the plant are less skilled than when he began.
E) Strikes by workers are more common now in the factory than before.