Please answer the following question: Information:  - The Army Board is the top single-service management committee of the British Army, and has always been staffed by senior politicians and soldiers. Until 1964 it was known as the Army Council.  - Colonel-in-Chief is a ceremonial position in a military regiment. It is in common use in several Commonwealth armies, where it is held by the regiment's patron, usually a member of the royal family. The position was formerly used in the armies of several European monarchies. A Colonel-in-Chief has a purely ceremonial role in their regiment.  - Lieutenant General James Hamilton , 4th Duke of Hamilton and 1st Duke of Brandon KG KT ( 11 April 1658 -- 15 November 1712 ) was a Scottish nobleman , the Premier Peer of Scotland and Keeper of the Palace of Holyroodhouse . He was a Master of the Great Wardrobe , Master - General of the Ordnance , Ambassador , and Colonel - in - Chief of his regiment . Hamilton was a major investor in the failed Darien Scheme , which cost many of Scotland 's ruling class their fortunes , and he played a leading role in the events leading up to the Act of Union in 1707 . He died on 15 November 1712 as the result of a duel in Hyde Park , Westminster , with Charles Mohun , 4th Baron Mohun , over a disputed inheritance .  - Artillery is a class of large military weapons built to fire munitions far beyond the range and power of infantry's small arms. Early artillery development focused on the ability to breach fortifications, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility providing the largest share of an army's total firepower.  - A regiment is a military unit. Their role and size varies markedly, depending on the country and the arm of service.  - The Master-General of the Ordnance (MGO) was a very senior British military position, usually held by a serving general. The Master-General of the Ordnance was responsible for all British artillery, engineers, fortifications, military supplies, transport, field hospitals and much else, and was not subordinate to the commander-in chief of the British military. Between 1855, and 1904, the post did not exist. In March 2013, the holder was titled as "Director Land Capability and Transformation" but still sat on the Army Board as Master-General of the Ordnance. In September 2013, the post was again eliminated.    After reading the paragraphs above, we are interested in knowing the entity with which 'james hamilton' exhibits the relationship of 'military branch'. Find the answer from the choices below.  Choices: - army  - artillery  - british army  - infantry  - regiment
A:
british army