Show the output of running the class Test in the following code lines:
```
interface A {
}
class C {
}
class B extends D implements A {
}
public class Test {
public static void main(String[] args) {
B b = new B();
if (b instanceof A)
System.out.println("b is an instance of A");
if (b instanceof C)
System.out.println("b is an instance of C");
}
}
class D extends C {
}
```
a. Nothing.
b. b is an instance of A.
c. b is an instance of C.
d. b is an instance of A followed by b is an instance of C.
d. b is an instance of A followed by b is an instance of C.
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