Which of the following describes a person who is wise in handling practical matters?

The term that best describes a person who is wise in handling practical matters is "prudent." This word refers to the quality of being sensible and judicious, especially in making decisions that involve practical considerations. A prudent individual carefully weighs their options, anticipates potential consequences, and makes choices that are both responsible and beneficial in the long run. This characteristic is particularly important in situations where foresight and sound judgment are paramount.

In contrast, a pseudonym refers to a fictitious name used by an author or individual, which does not relate to wisdom in practical matters. Procrastination involves delaying or postponing tasks which can lead to imprudent outcomes. Quell means to suppress or extinguish something, which also does not correspond to the wisdom or practicality that prudence embodies. Thus, out of all the options, "prudent" stands out for its clear connection to wise decision-making and effective management of practical affairs.