Fill in the blank to make this code compile: 

A. compare(Truck t)

B. compare(Truck t1, Truck t2)

C. compareTo(Truck t)

D. compareTo(Truck t1, Truck t2)

E. None of the above.

public class Truck implements Comparable { private int id; public Truck (int id) { this. id = id; } } @Override public int } return id - t.id; - {