Final answer:
A constructor is a special method used to initialize objects. 'Destroy' is not a possible header for a constructor.
Step-by-step explanation:
A constructor is a special method in object-oriented programming that is used to initialize objects. It is generally used to set the initial values of instance variables.
Out of the given options, destroy is not a possible header for the new constructor. The other options - initialize, create, and setup - are commonly used as headers for constructors.