Task: Question Answering
Input (English): Problem: from a pack of 52 cards , two cards are drawn together at random . what is the probability of both the cards being kings ? 
Options: a ) 1 / 15 , b ) 25 / 57 , c ) 35 / 256 , d ) 1 / 221 , e ) 2 / 15
Output (English): d