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

Example Input: Problem: what is the probability of getting 53 mondays in a leap year ? 
Options: a ) 1 / 7 , b ) 2 / 7 , c ) 3 / 7 , d ) 4 / 7 , e ) 5 / 7
Example Output: b

Example Input: Problem: a bag contains 30 red jellybeans and 30 blue jellybeans . if 3 jellybeans are removed one at a time , at random and are not replaced , what is the probability that all 3 jellybeans removed from the bag are blue ? 
Options: a ) 9 / 100 , b ) 2 / 19 , c ) 1 / 8 , d ) 1 / 20 , e ) 3 / 10
Example Output: d

Example Input: Problem: two unbiased coins are tossed . what is the probability of getting at most one head ? 
Options: a ) 2 / 3 , b ) 1 , c ) 3 / 4 , d ) 2 , e ) 1 / 2
Example Output:
c