Triple

Target entity: Robert Mills
Context triple: [Yang–Mills theory, introducedBy, Robert Mills]

• A. Robert Mills
  Robert Mills was a prominent 19th-century American architect best known for designing major public monuments and buildings in the early United States.
• B. Robert Mills chosen
  Robert Mills was an American physicist best known for co-developing the Yang–Mills gauge theory, which underpins the modern Standard Model of particle physics.
• C. Charles Bulfinch
  Charles Bulfinch was a prominent early American architect, often regarded as the first native-born professional architect in the United States, known for his influential Federal-style designs.
• D. Benjamin Henry Latrobe
  Benjamin Henry Latrobe was a pioneering British-American architect often regarded as the father of American architecture, known for his influential work on the United States Capitol and other early federal buildings.
• E. John Notman
  John Notman was a 19th-century Scottish-born American architect known for helping introduce the Italianate style to the United States and for designing prominent civic and institutional buildings.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.