According to Paragraph 3, which of the following statements is CORRECT？A．The research show

According to Paragraph 3, which of the following statements is CORRECT？

A．The research showed relationships between trust and mental health.

B．People who are not trustful tend to live in troubled areas.

C．Kids from secure areas are more stressful.

D．Kids from troubled areas are more likely poorly-educated.

请帮忙给出正确答案和分析，谢谢！