Definition: In this task, you need to provide the correct option for a given problem on probability from the provided options.
Input: Problem: the probability that a number selected at random from the first 50 natural numbers is a composite number is - . 
Options: a ) 17 / 25 , b ) 17 / 27 , c ) 17 / 18 , d ) 17 / 22 , e ) 17 / 09
Output:
a