Which of the following best describes an expedient action?

An expedient action is best characterized as being convenient and advantageous. This term often implies a focus on achieving a desired outcome quickly and efficiently, sometimes prioritizing practicality over morality or thoroughness. In various contexts, expedient actions may be taken to resolve an issue quickly or to benefit oneself or a situation, even if they might not align with ethical standards. The other options do not align with the core meaning of "expedient," as they either suggest negation of effectiveness, imply a negative moral connotation, or indicate that the action is time-consuming rather than prompt and advantageous.