Final answer:
When you use the automatically-supplied default constructor to create an object, it initializes the object's instance variables to their default values.
Step-by-step explanation:
When you use the automatically-supplied default constructor to create an object, it means that you are using the constructor provided by the programming language for that object. The default constructor initializes the object's instance variables to their default values. This is useful when you want to create an object without providing any specific values for its instance variables.
For example, in Java, if you create a class with no explicit constructor defined, the compiler will automatically provide a default constructor for you. When you create an object of that class using the default constructor, the object's instance variables will be initialized to their default values (e.g., 0 for numerical variables, null for reference variables).