Task: Question Answering
Input (English): Problem: at joel ’ s bookstore , the current inventory is 30 % historical fiction . of the historical fiction books , 40 % are new releases , while 50 % of the other books are new releases . what fraction of all new releases are the historical fiction new releases ? 
Options: a ) 4 / 25 , b ) 12 / 47 , c ) 2 / 5 , d ) 8 / 15 , e ) 2 / 3
Output (English): b