PracticeQuiz content is free on an ad-supported model.
Unfortunately, we can't support ad blocker usage because of the impact on our servers. If you'd like to continue, please disable your ad blocker and reload page.
68.Mr. Wilkes, the school principal, shows his delinquent students who are in detention a slide show of bad behaviors with terrible music playing in the background. Based on this, he is studying _____________.