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

[Q]: Problem: how many different ways can 2 students be seated in a row of 8 desks , so that there is always at least one empty desk between the students ? 
Options: a ) 50 , b ) 42 , c ) 24 , d ) 20 , e ) 12
[A]: b


[Q]: Problem: what is the probability of getting exactly 2 heads in a single throw of five fair coins ? 
Options: a ) 1 / 4 , b ) 3 / 8 , c ) 3 / 16 , d ) 5 / 16 , e ) 11 / 32
[A]: d


[Q]: Problem: from a group of 3 boys and 3 girls , 2 children are to be randomly selected . what is the probability that 1 boy and 1 girl will be selected ? 
Options: a ) 1 / 10 , b ) 4 / 9 , c ) 1 / 2 , d ) 9 / 15 , e ) 2 / 3
[A]:
d