Question: What may result when using the not - null assertion operator ( ! ! ) on a nullable variable that has a null value? Group

What may result when using the not-null assertion operator (!!) on a nullable variable that has a null value?
Group of answer choices
The program will skip execution of that statement.
The program will use a default value depending on the data type.
The program will throw a NullPointerException error and crash.
The program will execute undefined behavior.

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