challenge: According to Fernão Lopes de Castanheda, what were pangajava (penjajap) vessels from Sumatra known for?
  
  A. Being long and swift, going well under sail or oars
  B. Being shallow and flat, only suitable for navigating rivers
  C. Being slow and cumbersome, only suitable for short distances
  D. Being large and heavy, making them difficult to maneuver
  Answer: 