This is indeed an challenging question. Hence, I would like to post my explanation of the correct answer choice.
Option D compares the level of corruption between :
1. Individuals on a staff (Think of it as a whole group)
2. Individuals who have been convicted of corrupt behavior
Now, Option D says that level of corruption between the above mentioned individuals is NOT directly related.
Therefore, you cannot conclude that just because 8% of the MBAs at the firm have been convicted (Group 2)
...
Option D compares the level of corruption between :
1. Individuals on a staff (Think of it as a whole group)
2. Individuals who have been convicted of corrupt behavior
Now, Option D says that level of corruption between the above mentioned individuals is NOT directly related.
Therefore, you cannot conclude that just because 8% of the MBAs at the firm have been convicted (Group 2)
...






