Question:
Who was the head of Russia in Mar, 2004?

Context:
 Viktor Chernomyrdin is the head of the government of Russia from Aug, 1998 to Sep, 1998. 
 Viktor Zubkov is the head of the government of Russia from May, 2012 to May, 2012. 
 Mikhail Kasyanov is the head of the government of Russia from May, 2000 to Feb, 2004. 
 Yevgeny Primakov is the head of the government of Russia from Sep, 1998 to May, 1999. 
 Yegor Gaidar is the head of the government of Russia from Jun, 1992 to Dec, 1992. 
 Mikhail Fradkov is the head of the government of Russia from Mar, 2004 to Sep, 2007. 
 Sergei Stepashin is the head of the government of Russia from May, 1999 to Aug, 1999. 
 Dmitry Medvedev is the head of the government of Russia from May, 2012 to Jan, 2020. 
 Viktor Khristenko is the head of the government of Russia from Feb, 2004 to Mar, 2004. 
 Vladimir Putin is the head of the government of Russia from May, 2008 to May, 2012. 
 Boris Yeltsin is the head of the government of Russia from Nov, 1991 to Jun, 1992. 
 Mikhail Mishustin is the head of the government of Russia from Jan, 2020 to Dec, 2022. 
 Sergey Kiriyenko is the head of the government of Russia from Mar, 1998 to Aug, 1998.

Answer:
Viktor Khristenko