The Nature of Employer Liability Changed in the 19th Century

The nature of employer liability changed in the 19th century through judicial instrumentalism and had what effect?

A) Reducing the risks and the costs of business, making business enterprise more daring and profitable than it would have been otherwise.
B) Increasing the risks and the costs of business, making business enterprise more daring and profitable than it would otherwise have been.
C) Continuing the older doctrine that employers could be found guilty of contributory negligence, thus increasing the employer's liability for worker injury.
D) None of the above were effects of the changes to the nature of employer liability.