Triple

Target class: United States defense organization
Context triple: [Research and Development Board, instanceOf, United States defense organization]

• A. branch of the United States Armed Forces
  A branch of the United States Armed Forces is a distinct military service component (such as the Army, Navy, Air Force, Marine Corps, Space Force, or Coast Guard) with its own mission, structure, and responsibilities for national defense and security.
• B. defense organization chosen
  A defense organization is an entity, typically governmental or intergovernmental, responsible for planning, coordinating, and executing activities to protect a nation or group of nations from military and security threats.
• C. military organization
  A military organization is a structured group of armed forces personnel and resources, organized under a defined hierarchy and command system, to plan, coordinate, and conduct defense and combat operations in support of a state’s strategic objectives.
• D. United States federal government agency
  A United States federal government agency is an organization established by federal law or executive authority to implement, administer, and enforce specific national policies, programs, and regulations on behalf of the U.S. government.
• E. branch of the United States Army
  A branch of the United States Army is a specialized functional category, such as Infantry or Signal Corps, that organizes soldiers, training, and equipment around a distinct mission set and expertise area within the Army.
• F. None of above.