Task: Question Answering
Input (English): Problem: there are 2000 students in a school and among them 10 % of them attends chess class . 50 % of the students who are in the chess class are also enrolled for swimming . no other students are interested in swimming so how many will attend the swimming class if all enrolled attends ? 
Options: a ) 1 , b ) 10 , c ) 100 , d ) 50 , e ) 20
Output (English): c