challenge: Where is the Sanate Sugar Mill located?
  
  A. Near the Sanate Abajo River in the La Altagracia Province
  B. Near the Sanate Abajo River in the Puerto Plata Province
  C. Near the Sanate Abajo River in the La Romana Province
  D. Near the Sanate Arriba River in the Santo Domingo Province
  Answer: 