Assigning a subclass reference to a superclass variable is safe because the subclass object has an object of its superclass. because the subclass object is an object of its superclass. only when the superclass is abstract. only when the superclass is concrete.

the subclass object is an object of its superclass.

Explanation:

According to my research on different programming languages, I can say that based on the information provided within the question assigning a subclass reference to a superclass variable is safe because the subclass object is an object of its superclass. Since a superclass is the class from which many subclasses can be created.

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