challenge: Where was the 1954 film A Double Life primarily shot?
  
  A. Only at the Wiesbaden Studios in Hesse
  B. Only on location around Paris and Kiedrich in the Rhineland
  C. At the Wiesbaden Studios in Hesse and on location around Paris and Kiedrich in the Rhineland
  D. In the French Riviera and the Swiss Alps
  Answer: 