给出以下代码：10.class Line {11. public class Point { public int x,y;}12. public Point getPoint() { return new Point(); }13. }14. class Triangle {15. public Triangle() {16. // 此处加入代码17. }18. }第16行加入以下哪一行代码，可以定义一个Point对象？
A.Point p = Line.getPoint();
B.Line.Point p = Line.getPoint();
C.Point p = (new Line()).getPoint();
D.Line.Point p = (new Line()).getPoint();
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