Regarding Workers' Compensation,which of the Following Statements Is Correct

Regarding Workers' Compensation,which of the following statements is correct:

A) generally, workers' compensation is an injured employee's exclusive remedy
B) pursuant to workers' compensation, the employer gives up its right to defend against liability for employee injuries with the Fellow Servant Rule
C) pursuant to workers' compensation, the employer gives up its right to defend against liability for employee injuries with assumption of the risk
D) none of the above is correct
E) all of the above are correct