Triple

Target entity: Pennsylvania Railroad
Context triple: [Rockville Bridge, builder, Pennsylvania Railroad]

• A. Pennsylvania Railroad Company chosen
  The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
• B. Philadelphia and Reading Railroad
  The Philadelphia and Reading Railroad was a major 19th- and early 20th-century American railroad and coal-transporting line centered in Pennsylvania, later known as part of the Reading Company system.
• C. Philadelphia and Western Railroad
  The Philadelphia and Western Railroad was an early 20th-century interurban railway in the Philadelphia region that later evolved into what is now known as the Norristown High Speed Line.
• D. Lehigh Valley Railroad
  Lehigh Valley Railroad was a major northeastern U.S. railroad that primarily served the anthracite coal region of Pennsylvania and connected it to key industrial and port cities.
• E. Erie Railroad
  The Erie Railroad was a major 19th- and early 20th-century American railroad that operated extensive passenger and freight services across the northeastern United States, particularly linking New York City with the Midwest.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.