Instructions: In this task, you need to provide the correct option for a given problem on probability from the provided options.
Input: Problem: a meeting has to be conducted with 4 managers . find the number of ways in which the managers be selected from among 7 managers , if 2 managers will not attend the meeting together ?
Options: a ) 25 , b ) 20 , c ) 35 , d ) 36 , e ) 38
Output:
a