challenge: What is the origin of the specific epithet 'fortuita' in the species name Notogynaphallia fortuita?
  
  A. It describes the species' habitat
  B. It comes from the Latin word 'fortuitus', meaning 'casual, by chance'
  C. It is derived from the Latin word for 'rare'
  D. It refers to the species' unique physical characteristic
  Answer: 