challenge: What event occurs on July 23, 1998, on the Ecliptic Express train owned by Umbrella?
  
  A. A swarm of leeches attacks the passengers and crew
  B. A mysterious young man hijacks the train
  C. A group of S.T.A.R.S. officers board the train for a routine inspection
  D. The train is involved in a collision with another vehicle
  Answer: 