challenge: Where is the type locality of Porthidium hespere located?
  
  A. West-facing slope of the foothills, Municipio de Ixlahuacán, Colima
  B. Eastern slope of the Sierra Madre mountains, Jalisco
  C. Western coast of Nayarit, Mexico
  D. Central plateau of Guanajuato, Mexico
  Answer: 