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

Example Input: Problem: a certain junior class has 3000 students and a certain senior class has 800 students . among these students , there are 60 siblings pairs each consisting of 1 junior and 1 senior . if 1 student is to be selected at random from each class , what is the probability that the 2 students selected will be a sibling pair ?
Options: a ) 1 / 40000 , b ) 1 / 3600 , c ) 9 / 2000 , d ) 1 / 60 , e ) 1 / 15
Example Output: a

Example Input: Problem: two mba admissions committees are to be formed randomly from 6 second year mbas with 3 members each . what is the probability q that jane will be on the same committee as albert ?
Options: a ) 12 % , b ) 20 % , c ) 33 % , d ) 40 % , e ) 50 %
Example Output: d

Example Input: Problem: how many cubes of 4 cm edge can be cut out of a cube of 28 cm edge
Options: a ) 343 , b ) 232 , c ) 216 , d ) 484 , e ) none of these
Example Output:
a