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

Ex Input:
Problem: what is the smallest number by which 2880 must be divided in order to make it into a perfect square ?
Options: a ) 3 , b ) 4 , c ) 5 , d ) 6 , e ) 7

Ex Output:
c

Ex 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 / 5 , e ) none of above

Ex Output:
a

Ex Input:
Problem: there is a 20 % chance sandy will visit china this year , while there is a 70 % chance that she will visit malaysia this year . what is the probability that sandy will visit either china or malaysia this year , but not both ?
Options: a ) 44 % , b ) 48 % , c ) 54 % , d ) 62 % , e ) 70 %

Ex Output:
d