In America there used to be(and still is to a certain extent) a system where poorer schools would be graded differently than the rich schools, so it might be like that, or she could be looking at it from a worldwide scale.
In America there used to be(and still is to a certain extent) a system where poorer schools would be graded differently than the rich schools, so it might be like that, or she could be looking at it from a worldwide scale.