Miss smith is a strict but good teacher,____often cares about our life and study at school

问题描述:

Miss smith is a strict but good teacher,____often cares about our life and study at school
A one that B whoever C the one D the person 选什么 划分下主干

我一开始选的C,但答案是A,这个超出我能力范围,有一点我觉得逗号后面是一个同位语从句,就这样了