From what I see...The answer is most likely the first option. I'm not entirely sure but I think that's it.
The correct order of the Anglo-Boer war is :
The Boer Offensive - British Response - Guerrilla War
Stage 1 , Boer Offensive , happened in December 1899
Stage 2, British Response, Happened in February 1900
Stage 3, Guerrilla War, Happened in march 1901
Hope this helps