How do you insert a node at the beginning of the list?

1.	How do you insert a node at the beginning of the list?
A.	public class insertfront(int data) { node node = new node(data, head, head.getnext()); node.getnext().setprev(node); head.setnext(node); size++; }
B.	public class insertfront(int data) { node node = new node(data, head, head); node.getnext().setprev(node); head.setnext(node); size++; }
C.	public class insertfront(int data) { node node = new node(data, head, head.getnext()); node.getnext().setprev(head); head.setnext(node); size++; }
D.	public class insertfront(int data) { node node = new node(data, head, head.getnext()); node.getnext().setprev(node); head.setnext(node.getnext()); size++; }
Answer» B. public class insertfront(int data) { node node = new node(data, head, head); node.getnext().setprev(node); head.setnext(node); size++; }

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How do you insert a node at the beginning of the list?

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