What legal concept prevents someone from denying the consequences of their actions?

The correct choice revolves around the legal concept of estoppel, which serves to prevent a person from denying the consequences of their actions, particularly when their behavior has led another party to rely on those actions. In legal contexts, estoppel ensures fairness and consistency by stopping a person from taking a contradictory position that could harm another who has relied on their previous statements or conduct. For example, if a party has made a promise or representation that another party has relied upon to their detriment, the first party may be "estopped," or legally barred, from going back on their word and denying that promise.

In contrast, liability refers to the state of being legally responsible for something, particularly in tort or contract law. While it does indicate responsibility, it doesn't specifically address the act of denying consequences. Negligence pertains to a failure to exercise the care that a reasonably prudent person would exercise in similar circumstances, involving issues of carelessness rather than directly linking to the denial of consequences. An affidavit is a written statement confirmed by oath or affirmation, used as evidence in court, but it does not relate to the concept of denying actions or their consequences. Thus, estoppel stands out as the correct answer for establishing a legal barrier against denying the repercussions of one's actions