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

Input: Consider Input: Problem: three 6 faced dice are thrown together . the probability that no two dice show the same number on them is 
Options: a ) 5 / 0 , b ) 5 / 9 , c ) 5 / 1 , d ) 5 / 3 , e ) 5 / 6

Output: b


Input: Consider Input: Problem: a fair coin is tossed 15 times . what is the probability of getting more heads than tails in 15 tosses ? 
Options: a ) 1 / 2 , b ) 63 / 128 , c ) 4 / 7 , d ) 61 / 256 , e ) 63 / 64

Output: a


Input: Consider Input: Problem: if two dice are thrown together , the probability of getting a doublet on the dice is 
Options: a ) 1 / 6 , b ) 1 / 5 , c ) 1 / 4 , d ) 1 / 3 , e ) 1 / 2


Output: a