Given: 10. class Line { 11. public static class Point {} 12. } 13. 14. class Triangle { 15. // insert code here 16. } Which code, inserted at line 15, creates an instance of the Point class defined in Line? A. Point p = new Point(); B. Line.Point p = new Line.Point(); C. The Point class cannot be instatiated at line 15. D. Line l = new Line() ; l.Point p = new l.Point();