Read the text and answer question.

Children should be seen and not heard" may be due for a comeback. After decades of indulgence, American society seems to have reached some kind of tipping point, as far as tolerance for wild and woolly kid behavior is concerned. Are children ruder now than in the past? Do parents
care? Last month, an Associated Press-Ipsos poll found that nearly 70 percent of Americans said they believed that people are ruder now than they were 20 or 30 years ago, and that children are among the worst offenders. In 2002, only 9 percent of adults were able to say that the children they saw in public were "respectful toward adults," according to surveys done then by Public Agenda, a nonpartisan and nonprofit public opinion research
group. In 2004, more than one in three teachers told Public Agenda pollsters they had seriously considered leaving their profession or knew a colleague who had left because of "intolerable" student behavior. Disponível em:<http://www.nytimes.com/2005/11/27/weekinreview/27warner.html?pagewante d=all&_r=0 > . Acesso em: maio de 2014.

According to the text choose the alternatives that are CORRECT.

I. Adults in the research claim that they usually seechildren show adequate behavior in public places.
II. The majority of Americans in the research believechildren are ruder now than in the past.
III. Public Agenda is a for-profit public opinion research group.
IV. Teachers in the research have even considered leaving their profession as students show worse behavior.