Final answer:
The correct answer is C) Intent. All of the other options listed are necessary for establishing legal liability.
Step-by-step explanation:
The correct answer is C) Intent. All of the other options listed are necessary for establishing legal liability. Duty of care refers to the responsibility of an individual or entity to act in a way that avoids causing harm to others. Breach of duty occurs when there is a failure to meet the standard of care expected in a particular situation.
Causation refers to the link between the breach of duty and the resulting harm or damage. Intent, on the other hand, is not always required for legal liability. Some cases of negligence, such as negligence per se, do not require intent to be proven.