Which of the Following Statements Is False

Which of the following statements is false?

A) If a firm is an imperfect competitor in the labour market, then the labour supply curve is less than perfectly elastic.
B) If a firm is a perfect competitor in the labour market, then there is no marginal labour cost curve.
C) If a firm is an imperfect competitor in the labour market, then the employees receive less economic rent than they would if the market were perfectly competitive.
D) If a firm is an imperfect competitor in the labour market, the labour supply curve that it faces is upward sloping.
E) If a firm is an imperfect competitor in the labour market, the marginal labour cost curve lies above the labour supply curve.