问题：
[单选,材料题] High—altitude babies have heads that are larger than their bodies．根据以下资料，回答下面的题目。
According to the passage，one of the reasons why newborns in mountain communities are un—derweight is that their mothers are under—nourished．
A . Right
B . Wrong
C . Not mentioned
参考答案：B
参考解析：
本题暂无解析
