Backed enum “Fruit” is created

You have created a backed enum “Fruit” as follows in PHP.

<?php

enum Fruit: string

case Apple = ‘A’;

case Lemon = ‘L’;

case Orange = ‘O’;

case Tomato = ‘T’;

}

?>

In the given context, what will happen if a variable is assigned as a reference to the backed case Lemon?

Options

1. The value property of Lemon is enforced to be read-only
2. The following error is thrown:
3. Error: Cannot acquire reference to property Fruit::$value
4. The value L is printed
5. A ValueError is thrown