A new popular movie depicts a grisly scene of teen violence against senior citizens. Although the criminals in the movie are caught and punished, city officials are dismayed to discover that similar acts of violence increase across the city shortly after the movie opens. A reporter decides to compare crime rates before and after the movie to determine if the movie has stimulated teen violence. Can the reporter then conclude that watching a violent film can induce violent behavior? Why or why not?

why many of the teenagers they are finding themselves, and they usually do what they see on TV

Explanation:

the historians cited in the article all agree with one another about the cause of the civil war. despite coming from different backgrounds and cultures, the historians agree that slavery was the root cause of the civil war. the fact that all these historiansgenerally agree with one another makes their shared viewpoints more reliable and valid, especially because the historians have different backgrounds and all work for the well-respected institutions of howard university, clemson university, and the university of colorado.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."