Which of the Following Is True of Worker's Compensation

Which of the following is true of worker's compensation?

A) Household workers and domestic employees are not eligible to receive worker's compensation.
B) Worker's compensation is compulsory in all states of the U.S.
C) Worker's compensation acts cover the costs of medical care, but not payment of lost wages.
D) Worker's compensation is a no-fault system.
E) The employees covered by worker's compensation retain the right to sue the employer for any injury.