How do you count the number of elements in the circular linked list?

1.	How do you count the number of elements in the circular linked list?
A.	public int length(node head) { int length = 0; if( head == null) return 0; node temp = head.getnext(); while(temp != head) { temp = temp.getnext(); length++; } return length; }
B.	public int length(node head) { int length = 0; if( head == null) return 0; node temp = head.getnext(); while(temp != null) { temp = temp.getnext(); length++; } return length; }
C.	public int length(node head) { int length = 0; if( head == null) return 0; node temp = head.getnext(); while(temp != head && temp != null) { temp = head.getnext(); length++; } return length; }
D.	public int length(node hea { int length = 0; if( head == null) return 0; node temp = head.getnext(); while(temp != head && temp == null) { temp = head.getnext(); length++; } return length; }
Answer» B. public int length(node head) { int length = 0; if( head == null) return 0; node temp = head.getnext(); while(temp != null) { temp = temp.getnext(); length++; } return length; }

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How do you count the number of elements in the circular linked list?

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