public class SampleClass {

public static void main(String[] args) {

AnotherSampleClass asc = new AnotherSampleClass();

SampleClass sc = new SampleClass();

// TODO code application logic here

}

}

class AnotherSampleClass extends SampleClass {

}

Which statement, when inserted into line " // TODO code application logic here ", is valid change?

a. asc = sc;

b. sc = asc;

c. asc = (object) sc;

d. asc = sc.clone()