Suppose a Developer Gets Class XYZ Files and Documentation from a Subcontractor

Multiple Choice

Suppose a developer gets class XYZ files and documentation from a subcontractor. This class does not implement the Comparable interface. What must be true in order for the developer to sort an array of XYZ objects without modifying the xyz class?

A) The XYZ class must implement the Sortable interface.
B) XYZ objects must be randomly distributed.
C) XYZ objects must be ordered.
D) The developer must supply a comparator object belonging to a class that implements the Comparator<XYZ> interface.