What is the outcome of below code box class?class Shape { public int area() { return 0; }}class Square extends Shape { public int area() { return 5; }}class Rectangle extends Shape { public int area() { return 9; }}public class box{ public static void main(String[] args) { Shape obj = new Square(); Shape obj0 = new Rectangle(); obj = obj0; System.out.println(obj.area()); }}

• A. Compilation Error
• B. Runtime Error
• C. Default value
• D. 9
• E. None of these