Which of the Following Is True About Tort Law

Which of the following is true about tort law?

A) Tort law holds that the only duties that a person owes are those that have been explicitly promised to another party.
B) Tort law holds manufacturers accountable in cases when consumers are injured by products and no one is at fault.
C) Tort law holds a principal responsible for the actions of an agent when that agent is acting in the ordinary course of his or her duties to the principal.
D) Tort law holds that people do not owe other people any general duties, if they have not voluntarily assumed them.