Which BEST completes the diagram?

answer; (i-o) psychologist

answer; /// i believe the correct answer is (when one group has an extremely high score at pretest;

now you can mark brain hope this

the answer is : the nut cases won't quit battling and their recurrence of flights will going to continue as before despite the fact that the battles are less hazardous now because of their bills have all of a sudden been blunted.   in the falcon dove diversion, two creatures will drive towards one another to crush one another, among the two one will win and other will swerve. in this way, clearly, the battle will be dependably there between two creatures for the assets or mate.