Triple

Target entity: British Army regimental system
Context triple: [Northumbrian infantry tradition, partOf, British Army regimental system]

• A. British Army regiments chosen
  British Army regiments are the principal permanent combat units of the United Kingdom’s land forces, each with its own distinct history, traditions, and identity.
• B. British Army formations
  British Army formations are organized military units and groupings within the British Army, ranging from brigades and divisions to corps-level structures, designed to conduct and support land operations.
• C. British Army administrative commands
  British Army administrative commands are regional and functional organizational structures responsible for managing the administration, support, and non-operational control of the British Army.
• D. British Army garrison network
  The British Army garrison network is the system of military bases and camps across the United Kingdom and overseas that house, support, and train Army units.
• E. English Army
  The English Army was the land warfare force of the Kingdom of England prior to its unification into the British Army in the early 18th century.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.