class check1
{ check1(int a)
{
this();
System.out.print(a);}
...
check1()
{System.out.print("In check1,");}
}

class check2 extends check1
{
check2(int a)
{System.out.print(a);}

check2()
{super(20);
System.out.print("In check2,"); }

}

class check3 extends check2
{
check3(int a)
{System.out.print(a);}

check3()
{System.out.print("In check3,");}

}

class fbtest
{
public static void main(String args[])
{
new check3( 10);

}
}

what will be output....
A: In check1, In check2, In check3
B: 10
C: In check1, 20, In check2, 10
D: ErrorSee More