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

Input: Consider Input: Problem: how many positive integers less than 600 can be formed using the numbers 1 , 2 , 3 , 5 and 6 for the digits ? 
Options: a ) 48 , b ) 130 , c ) 66 , d ) 68 , e ) 84

Output: b


Input: Consider Input: Problem: 8 coins are tossed . whats is the probability that one and only one turns up head ? 
Options: a ) 1 / 256 , b ) 1 / 32 , c ) 1 / 64 , d ) 1 / 128 , e ) 1 / 189

Output: b


Input: Consider Input: Problem: from a pack of 52 cards , 1 card is drawn at random . find the probability of a face card drawn . 
Options: a ) 4 / 13 , b ) 1 / 52 , c ) 1 / 4 , d ) 1 / 3 , e ) none of these


Output: a