Task: Question Answering
Input (English): Problem: the compound ratio of 5 : 1 , 3 : 1 and 2 : 5 ? 
Options: a ) 6 : 1 , b ) 1 : 3 , c ) 1 : 5 , d ) 1 : 1 , e ) 1 : 6
Output (English): a