What modifiers may be used with top-level class?-

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public, abstract and final can be used for top-level class.

In Java, a top-level class (i.e., a class that is not a nested or inner class) can have the following modifiers:

  1. public: The class can be accessed from any other class.
  2. (default, no modifier): If no access modifier is specified, the class is only accessible within the same package.

So, the correct answer would be public and the default (package-private) modifier.