Question: When a superclass variable refers to a subclass object and a method is called on that object, the proper implementation is determined at execution time.

When a superclass variable refers to a subclass object and a method is called on that object, the proper implementation is determined at execution time. What is the process of determining the correct method to call?
Group of answer choices
early-binding.
non-binding.
on-time binding.
late(dynamic) binding.

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