Under What Conditions Might One Expect Wages to Be Above

Under what conditions might one expect wages to be above the prevailing competitive levels?

A) in cases in which the employer is a monopolist, an oligopolist, or a monopolistic competitor in the output market
B) only in cases in which the employer has market power in the labour market
C) only in cases in which the employer has market power in the product market
D) only in the case where a union exists
E) only in the case where the employer is a monopolist in the product market