What term describes an individual engaged in determining or expressing an ethical choice?

The term that describes an individual engaged in determining or expressing an ethical choice is "moral agent." A moral agent is someone who possesses the capacity to make ethical decisions and is held accountable for their actions based on their understanding of right and wrong. This concept emphasizes the individual’s role in evaluating situations and making choices in accordance with their ethical beliefs and values.

In the context of ethical decision-making, a moral agent actively considers the implications of their choices on others and the broader community. The recognition of personal responsibility and the ability to reflect on one's actions are fundamental characteristics of a moral agent, which distinguishes them from others who may simply follow rules or guidelines without engaging in critical ethical reasoning.

While the other terms may seem relevant, they do not capture the essence of an individual’s active engagement in the ethical decision-making process in the same way. An ethical evaluator, for instance, might focus on assessing ethical situations rather than making choices, while a decision maker might not necessarily involve ethical considerations in their decision-making process. A sentinel typically refers to someone who watches over or monitors situations, lacking the direct implication of moral responsibility inherent in being a moral agent.