What two missions are inherent to all Marines?

The correct choice highlights the dual focus of mission accomplishment and troop welfare as fundamental to every Marine's duties. Mission accomplishment aligns with the core objective of the Marine Corps: to effectively complete assigned tasks in defense of the nation. This entails a commitment to achieving operational goals, whether in combat or support roles, thereby ensuring that missions are executed with efficiency and effectiveness.

Troop welfare is equally vital. It emphasizes the responsibility of leaders at all levels to care for the well-being and morale of their troops. A Marine's success is not only determined by their performance in achieving missions but also by their capacity to foster a supportive environment for those they lead. This balance between mission success and the health and morale of Marines is essential for sustaining operations over time, as satisfied and cared-for personnel are more likely to perform optimally.

By focusing on both mission accomplishment and troop welfare, Marines embody the core values of honor, courage, and commitment—ensuring that while they strive for success in their objectives, they simultaneously uphold the dignity and needs of their fellow service members.