Question:
Which position did Christian Zetlitz Bretteville hold in Oct, 1846?

Context:
 Christian Zetlitz Bretteville holds the position of deputy member of the Parliament of Norway from Jan, 1845 to Jan, 1847. 
 Christian Zetlitz Bretteville holds the position of mayor of Oslo from Jan, 1841 to Jan, 1841. 
 Christian Zetlitz Bretteville holds the position of Norwegian prime minister in Stockholm from Nov, 1861 to Dec, 1861. 
 Christian Zetlitz Bretteville holds the position of member of the Parliament of Norway from Jan, 1848 to Jan, 1850. 
 Christian Zetlitz Bretteville holds the position of Minister of Auditing from Jun, 1855 to Apr, 1856. 
 Christian Zetlitz Bretteville holds the position of Minister of Finance of Norway from Sep, 1853 to Mar, 1854.

Answer:
deputy member of the Parliament of Norway