In this task, you need to provide the correct option for a given problem on probability from the provided options.

Input: Consider Input: Problem: from a group of 5 boys and 5 girls , 6 children are to be randomly selected . what is the probability that 3 boys and 3 girls will be selected ? 
Options: a ) 4 / 15 , b ) 6 / 17 , c ) 8 / 19 , d ) 10 / 21 , e ) 12 / 23

Output: d


Input: Consider Input: Problem: a card is drawn from a pack of 52 cards . the probability of getting a queen of club or a king of heart is : 
Options: a ) 1 / 26 , b ) 1 / 52 , c ) 2 / 62 , d ) 2 / 26 , e ) 3 / 26

Output: a


Input: Consider Input: Problem: two cards are drawn together from a pack of 52 cards the probability that one is the spade and one is a heart is ? 
Options: a ) 85 / 852 , b ) 45 / 69 , c ) 18 / 456 , d ) 13 / 102 , e ) 23 / 125


Output: d