The first sentence in the passage suggests that the observers mentioned in line I would be most likely to. predict which of the followings
A．That the total number of temporary positions would increase as fewer workers were able to find permanent positions.
B．That employers would have less control over the terms of workers employment as workers increasedtheir bargaining strength.
C．That more workers would be hired for temporary positions as product demand increased.
D．That the number of workers taking temporary positions would increase as more workers in any given demographic group entered the workforce.