Task: Question Answering
Input (English): Problem: thirty percent of the members of a swim club have passed the lifesaving test . among the members who have not passed the test , 21 have taken the preparatory course and 42 have not taken the course . how many members are there in the swim club ? 
Options: a ) 40 , b ) 60 , c ) 80 , d ) 90 , e ) 140
Output (English): d