You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: THE BUSINESS WORLD 
Clue: Because many of these have happened to GE stock, 1 share bought in 1892 would be 1,536 today
stock splits

Category: INK 
Clue: Company that makes the Eraser Mate, a pen that has erasable ink
paper mate

Category: SCIENCE 
Clue: Also a term for someone from Warsaw, it's one of the 2 strongest points in a magnetic field

pole