Task: Question Answering
Input (English): Problem: in a sample of 800 high school students in which all students are either freshmen , sophomores , juniors , or seniors , 27 percent are juniors and 75 percent are not sophomores . if there are 160 seniors , how many more freshmen than sophomores are there among the sample of students ? 
Options: a ) 12 , b ) 18 , c ) 24 , d ) 30 , e ) 36
Output (English): c