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

[EX Q]: Problem: in how many ways 4 boys and 4 girls can be seated in a row so that they are alternate . 
Options: a ) 144 , b ) 288 , c ) 12 , d ) 576 , e ) none
[EX A]: d

[EX Q]: Problem: when you draw 2 dices together , find the probability of getting a total of 6 ? 
Options: a ) 3 / 13 , b ) 2 / 31 , c ) 5 / 36 , d ) 7 / 41 , e ) 7 / 43
[EX A]: c

[EX Q]: Problem: a certain junior class has 1,000 students and a certain senior class has 400 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 at will be a sibling pair ? 
Options: a ) 3 / 20,000 , b ) 1 / 3,600 , c ) 9 / 2,000 , d ) 1 / 60 , e ) 1 / 15
[EX A]:
a