Which of the following is a consequence of drug or alcohol abuse in the Marine Corps?

Disciplinary action is indeed a significant consequence of drug or alcohol abuse in the Marine Corps. The Marine Corps maintains strict policies regarding substance use due to the potential impact on performance, safety, and discipline within the ranks. Engaging in such behavior can lead to various forms of disciplinary measures, including non-judicial punishment or court-martial, which can ultimately sever a Marine's career trajectory. The Marine Corps emphasizes adherence to standards, and any form of substance abuse is considered a violation of those standards, leading to administrative action and potential separation from service.

This approach underscores the importance of maintaining the integrity and readiness of Marine personnel, ensuring that all members are fit for duty and capable of performing their responsibilities without the impairing effects of drugs or alcohol.