What is the term for showing prudence and self-restraint?

The term that conveys the idea of showing prudence and self-restraint is "discretion." This word typically refers to the ability to make decisions and act judiciously, especially in sensitive situations. Discretion involves careful consideration in assessing when and how to express oneself or respond to particular circumstances, thereby exemplifying self-restraint and thoughtful judgment.

While the choice noted as "D" might seem relevant due to its similarity to discretion, "discreet" actually refers to being careful and circumspect in speech or actions to avoid causing offense or attracting attention. Although discreet behavior often aligns with being prudent, it does not exclusively capture the notion of self-restraint in decision-making the way discretion does. The focus of discretion encompasses broader decision-making considerations, while discreet applies more narrowly to the manner in which one conducts themselves in certain situations.

Thus, discretion is the correct term associated with the qualities of prudence and self-restraint, highlighting the importance of measured judgment in various contexts.