(单选题)

What is the benefit of doing outdoor activities in natural settings? ( )

A.It can help children to focus attention.

B.It can reduce the risk of mental disorder.

C.It can help children to think clearly.

D.It can make children feel happy.

参考答案：A

参考解析：

根据问题可以定位于原文第二段：Other research also suggests that activity in natural outdoor settings can help reduce the symptoms of Attention-deficit/hyperactivity disorder (ADHD) in children. ADHD is a brain disorder that can affect a person's ability to think clearly可知其他研究还表明，在户外自然环境中活动有助于减少儿童注意力缺陷/多动症（ADHD）的症状。多动症是一种脑部疾病，会影响一个人清晰思考的能力。选项A：它能帮助儿童集中注意力；选项B：它可以降低患精神疾病的风险；选项C：它能帮助儿童清晰地思考；选项D：它能让儿童感到开心。故本题正确答案选A。

知识点：细节题英语阅读理解通用英语