Task: Question Answering
Input (English): Problem: find the fraction which has the same ratio to 1 / 2 that 2 / 5 has to 3 / 7 
Options: a ) 1 / 2 , b ) 2 / 12 , c ) 14 / 30 , d ) 3 / 8 , e ) 7 / 9
Output (English): c