challenge: What are the different forms of the Russian surname Vysotsky?
  
  A. Vysotsky, Vysotskoye, Vysotskaya
  B. Vysotskoye, Vysotskaya, Vysotski
  C. Vysotsky, Vysotskaya, Vysotskoye
  D. Vysotsky, Vysotskaya, Vysotskaya
  Answer: 