Triple

Target entity: Calvert Vaux
Context triple: [The Pond (Central Park), designedBy, Calvert Vaux]

• A. Calvert Vaux chosen
  Calvert Vaux was a 19th-century British-American architect and landscape designer best known for co-designing New York City's Central Park and contributing to many of its major public buildings and spaces.
• B. Frederick Law Olmsted
  Frederick Law Olmsted was a pioneering 19th-century American landscape architect best known for designing major urban parks such as New York City's Central Park and Boston's Emerald Necklace.
• C. Alexander Jackson Davis
  Alexander Jackson Davis was a prominent 19th-century American architect best known for his influential Greek Revival and Gothic Revival designs, including numerous public buildings and country houses.
• D. Frank Furness
  Frank Furness was a prominent 19th-century American architect known for his bold, eclectic, and highly original Victorian-era designs, particularly in Philadelphia.
• E. Frederick Law Olmsted Jr.
  Frederick Law Olmsted Jr. was a prominent American landscape architect and urban planner known for advancing his father's legacy through major park, conservation, and planning projects in the early 20th century.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.