Duress refers to:

Duress specifically refers to a situation where an individual is compelled to act against their will due to threats or coercion. This often involves intimidation or pressure that forces someone into a particular course of action, typically in a legal context where consent is obtained under such circumstances is not considered valid. The term emphasizes the lack of free will in decisions made under such conditions, making it critical to understand in various legal and ethical discussions.

The other options do not relate to the core meaning of duress. For example, being high-spirited refers to a lively attitude, proper behavior pertains to conduct that is deemed acceptable, and an abundance of resources speaks to plenty of materials or supplies, none of which capture the concept of being forced or coerced into action.