单选题Given:  Which code, inserted at line 15, creates an instance of the Point class defined in Line?()ALine l = new Line() ; l.Point p = new l.Point();BLine.Point p = new Line.Point();CThe Point class cannot be instatiated at line 15.DPoint p = new Point()

题目
单选题
Given:  Which code, inserted at line 15, creates an instance of the Point class defined in Line?()
A

 Line l = new Line() ; l.Point p = new l.Point();

B

 Line.Point p = new Line.Point();

C

 The Point class cannot be instatiated at line 15.

D

 Point p = new Point();


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