Question:
Which position did Herbert Sausgruber hold in Nov, 1989?

Context:
 Herbert Sausgruber holds the position of Vice-governor of Vorarlberg from May, 1990 to Apr, 1997. 
 Herbert Sausgruber holds the position of Member of Landtag of Vorarlberg from Nov, 1979 to Oct, 1989. 
 Herbert Sausgruber holds the position of Landeshauptmann from Apr, 1997 to Dec, 2011. 
 Herbert Sausgruber holds the position of Landesrat from Oct, 1989 to May, 1990.

Answer:
Landesrat