challenge: What type of fighter did Yevgeny Savitsky fly with the 172nd Fighter Aviation Regiment from late 1941 to early 1942?
  
  A. Lavochkin La-5
  B. Mikoyan-Gurevich MiG-3
  C. Lavochkin-Gorbunov-Gudkov LaGG-3
  D. Polikarpov I-16
  Answer: 