一个选择题，帮忙看一下还有原因

来源：百度知道编辑：UC知道时间：2024/06/14 13:55:46

（）about the student, the teacher called his parents to find out why he was so often absent from class.
A Concerning B Concern C Concerned D Concerns

be concerned about意思是对……关心
concerning sth.用作现在分词时，意思是与……有关
根据意思选择C
具体的用法和意义，建议查阅词典。

C
全句为过去式，所以介词短语根据时态做答。