Which of the Following Statements About Nineteenth-Century Law and Employee

Which of the following statements about nineteenth-century law and employee injuries is false?

A) Employees never had problems with proving the employer's negligence.
B) A slight degree of contributory negligence on part of the employee would provide the employer with a complete defense.
C) The fellow-servant rule excused an employer from liability when an employee's injury resulted from the negligence of a coemployee.
D) Employers had an implied assumption of risk defense under which an employee assumed all the normal and customary risks of his employment simply by taking the job.