In those years, a very young mother was not as common as it is now, so her mother was laughed at and looked down upon for that.

A、她母亲不会因早育受到嘲笑和歧视，因为在那些年间，年轻的母亲和现在相比很普遍。
B、年轻的母亲在那些年间并不像现在这样普遍，所以她母亲常因早育受到鼓励和照顾。
C、在那些年间，年轻的母亲并不像现在这样普遍，所以她母亲常因早育受到嘲笑和歧视。