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

[Q]: Problem: two dice are thrown simultaneously . what is the probability of getting two numbers whose product is not an even ? 
Options: a ) 1 / 2 , b ) 1 / 4 , c ) 2 / 3 , d ) 2 / 5 , e ) 3 / 7
[A]: b


[Q]: Problem: a meeting has to be conducted with 3 managers . find the number of ways in which the managers be selected from among 6 managers , if 2 managers will not attend the meeting together ? 
Options: a ) 18 , b ) 20 , c ) 16 , d ) 22 , e ) 24
[A]: c


[Q]: Problem: a bag consists of 50 marbles , of which 5 are blue , 9 are red , and the remainder are white . if lisa is to select a marble from the bag at random , what is the probability that the marble will be red or white ? 
Options: a ) 3 / 4 , b ) 2 / 4 , c ) 1 / 4 , d ) 1 / 8 , e ) 9 / 10
[A]:
e