All of the Following Statements,except One,are Correct When a Trade

All of the following statements,except one,are correct when a trade union successfully imposes a wage rate above equilibrium.Which is the exception?

A) There will be more workers willing to work than are hired.
B) The firm's total wage bill will definitely be higher.
C) The average firm is not operating in a competitive factor market.
D) The quantity of workers hired will be less after the imposition of the higher wage than it was before.
E) Neither the demand for nor the supply of labour has changed.