患者，男性，11岁，因“地包天”要求矫治。临床检查：恒牙<img src="/Image1/20/209d039037793a279d79976fa8299152.jpg" />，4个切牙反<img src="/Image1/20/209d039037793a279d79976fa8299152.jpg" />，下前牙存在间隙且舌倾，磨牙完全近中关系，凹面型。功能检查：下颌可后退至前牙对刃。X线检查：∠ANB小于0°。对于此患者正确的诊断是（）<br>A:牙性前牙反<img src="/Image1/20/209d039037793a279d79976fa8299152.jpg" /><br>B:功能性前牙反<img src="/Image1/20/209d039037793a279d79976fa8299152.jpg" /><br>C:骨性前牙反<img src="/Image1/20/209d039037793a279d79976fa8299152.jpg" /><br>D:牙性伴功能性前牙反<img src="/Image1/20/209d039037793a279d79976fa8299152.jpg" /><br>E:骨性伴功能性前牙反<img src="/Image1/20/209d039037793a279d79976fa8299152.jpg" />