challenge: Where is Corlier Aerodrome located?
  
  A. In the Provence-Alpes-Côte d'Azur region of southeastern France
  B. In the Auvergne-Rhône-Alpes region of eastern France
  C. In the Nouvelle-Aquitaine region of southwestern France
  D. In the Île-de-France region of northern France
  Answer: 