challenge: What is the relationship between Alison Sound and Belize Inlet?
  
  A. Alison Sound is a tributary of Belize Inlet
  B. Alison Sound is a separate body of water with no connection to Belize Inlet
  C. Belize Inlet is a smaller inlet within Alison Sound
  D. Alison Sound extends north and northwest from Belize Inlet
  Answer: 