Task: Question Answering
Input (English): Problem: in an election between two candidates , one got 55 % of the total valid votes , 20 % of the votes were invalid . if the total number of votes was 5000 , the number of valid votes that the other candidate got , was : 
Options: a ) 1800 , b ) 2700 , c ) 2900 , d ) 2200 , e ) 2300
Output (English): a