Task: Question Answering
Input (English): Problem: if 5 a = 6 b and ab ≠ 0 , what is the ratio of a / 6 to b / 5 ? 
Options: a ) 36 / 25 , b ) 10 / 12 , c ) 1 , d ) 1 / 5 , e ) 25 / 36
Output (English): c