Fayette County, Ga., population 106,567, resembles many Washington-area suburbs, the Washington Post reports. It has lovely trees, expensive cars and good schools. Most of the residents are middle-class. They set high standards for their kids. But what is happening to one particular Fayette County student is sadly at odds with the way ambitious students are treated here. Jacqueline Berthold, a sophomore at Starr’s Mill High School, has a grade point average of 92 on a 100 point scale, including a 93 in English. Like many students showing academic promise, she wants the challenge of taking Advanced Placement English Language next year. In the Washington area, that would be no problem. Anyone who wants to take a college-level course like AP, International Baccalaureate or Advanced International Certificate of Education may do so in the school districts along the Potomac…