challenge: What is the significance of Aberconwy House in terms of its age?
  
  A. It is one of the oldest dateable houses in Wales, with roof timbers dating back to c. 1417–1420
  B. It is a modern reconstruction of a medieval house
  C. It is the oldest house in Wales, dating back to the Roman era
  D. It is one of the newest houses built in Wales during the medieval period
  Answer: 