The failure to exercise the necessary care not to expose others to unreasonable risk of harm is the tort of:
liability
defamation
negligence
carelessness
The tort described in the question is negligence. Negligence refers to the failure to exercise reasonable care, resulting in harm or injury to another person. To determine the answer to this question, we need to understand the different options provided.
Liability is a broad term that refers to legal responsibility. It can apply to various situations, including negligence, but it is not specifically related to the question.
Defamation is a completely different tort that involves making false statements that harm someone's reputation. It is not related to the failure to exercise care and expose others to harm.
Carelessness is a term that is often used interchangeably with negligence, but it does not specifically describe the tort itself.
As a result, the correct answer is negligence. To arrive at this answer, it is crucial to understand the definitions and elements of each potential answer choice and how they relate to the concept of failing to exercise the necessary care and exposing others to unreasonable risk of harm.