challenge: What was Otto von Habsburg's position in the International Paneuropean Union?
  
  A. President (1957-1973) and Vice President (1973-2004)
  B. Vice President (1973-2004) and Member of the European Parliament (1957-1973)
  C. Vice President (1957-1973) and President (1973-2004)
  D. Member of the European Parliament (1957-1973) and President (1973-2004)
  Answer: 