What is the result?

Given:

interface Fish {
}

class Perch implements Fish {
}

class Walleye extends Perch {
}

class Bluegill {
}

public class Fisherman {
public static void main(String[] args) {
Fish f = new Walleye();
Walleye w = new Walleye();
Bluegill b = new Bluegill();
if (f instanceof Perch)
System.out.print(“f-p “);
if (w instanceof Fish)
System.out.print(“w-f “);
if (b instanceof Fish)
System.out.print(“b-f “);
}
}

What is the result?

A.
w-f

B.
f-p w-f

C.
w-f b-f

D.
f-p w-f b-f

E.
Compilation fails.

F.
An exception is thrown at runtime.

Explanation:
f-p w-f