Task: Question Answering
Input (English): Problem: in a sports club with 80 members , 48 play badminton and 46 play tennis and 7 do not play either . how many members play both badminton and tennis ? 
Options: ['a ) 23', 'b ) 21', 'c ) 20', 'd ) 26', 'e ) 27']
Output (English): b