challenge: What types of aircraft currently service Brenner Field?
  
  A. Cessna 162 Skycatcher and Boeing 737
  B. Cessna 172 Skyhawk and Airbus A320
  C. Boeing 747 and Lockheed C-130 Hercules
  D. Cessna 162 Skycatcher, Cessna 172 Skyhawk, and McDonnell Douglas DC-9
  Answer: 