Sie arbeitet .... Translingua.
B
Correct answer
Explanation
In German, 'bei' is the correct preposition to indicate working 'at' or 'for' a company/organization. 'Sie arbeitet bei Translingua' means 'She works at Translingua'. 'Auf' means 'on', 'für' (misspelled as 'fur') means 'for', and 'auch' means 'also' - none fit the context of workplace location as well as 'bei'.