10. public class Foo implements java.io.Serializable { 
	11. private int x; 
	12. public int getX() { return x; } 
	12.publicFoo(int x){this.x=x; } 
	13. private void writeObject( ObjectOutputStream s) 
	14. throws IOException { 
	15. // insert code here 
	16. } 
	17. } 
	Which code fragment, inserted at line 15, will allow Foo objects to be correctly serialized and deserialized?() 
	A. s.writeInt(x);
	B. s.serialize(x);
	C. s.writeObject(x);
	D. s.defaultWriteObject();
 
                            