challenge: What is the origin of the McCoy surname in Ulster, Northern Ireland?
  
  A. From the Scottish mercenaries known as gallowglass in the 14th century and later Scottish MacKays
  B. From the Irish word for 'fire'
  C. From the grandsons of Aodh, son of Ruaidhrí mac Coscraigh, King of South Connacht, Ireland
  D. Directly from the Irish surname Mac Aodha
  Answer: 