In Java, can an abstract class extend another class?

Answer: Option B

In Java, abstract classes can extend both abstract and concrete classes.

When an abstract class extends another class (whether abstract or concrete), it inherits the properties and methods of that class.

An abstract class is allowed to inherit from a concrete class and can override or use the methods from the superclass.

Option A is incorrect because abstract classes can extend other classes.

Option C is incorrect since there is no requirement for the superclass to be marked as "static."

Option D is incorrect as the subclass does not need to be marked "final" to extend a class.