Which of the following statements characterise the objectives of labour legislation?<br>1. Improve the conditions of labour<br>2. To protect the rights of labour unions<br>3. To protect employers<br>4. To protect the public from possible excess on the part of organised labour

A. public class Circle implements Shape { private int radius; }B. public abstract class Circle extends Shape { private int radius; }C. public class Circle extends Shape { private int radius; public void draw(); }D. public abstract class Circle implements Shape { private int radius; public void draw(); }E. public class Circle extends Shape { private int radius; public void draw() { /* code here */ } }F. public abstract class Circle implements Shape { private int radius; public void draw() { /* code here */ } }