According to a study that analyzed the exposure to six stressors among poor children and middle-income children in the United States, which of the following is a difference between children in poor families and children in middle-income families? A. Unlike children in poor families, children in middle-income families were much more likely to separate from a parent.
B. Unlike children in poor families, children in middle-income families were much less likely to have a peaceful home.
C. Unlike children in middle-income families, children in poor families were much more likely to be exposed to violence.

C. Unlike children in middle-income families, children in poor families were much more likely to be exposed to violence.

Explanation:

According to a study that analyzed the exposure to six stressors among poor children and middle-income children in the United States, it was concluded that. Unlike middle income children, low-income children were much more likely to be exposed to violence. In the sense that, they are disproportionately exposed to more adverse social and physical environmental conditions whereby, they experience greater family turmoil, violence, and separation from their parents.

It was also concluded that, children in poor families lives in households that are more crowded, noisier, and more physically deteriorated, with more safety hazards.

Hence, the correct answer is C. Unlike children in middle-income families, children in poor families were much more likely to be exposed to violence.

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."