Task: Question Answering
Input (English): Problem: there are 720 male and female participants in a meeting . half the female participants and one - quarterof the male participants are democrats . one - third of all the participants are democrats . how many of the democrats are female ? 
Options: a ) 75 , b ) 100 , c ) 120 , d ) 175 , e ) 225
Output (English): c