About class c extending A.B

I tried compiling it and I get compilation error.

I don't see anything in this program that could generate a compile error.

What did the error say?

Hello!

May be it is question 50 of Practice Exam 1

interface I {}

class A extends B implements I{}

class B {}

I[] as = new A[]{new B()}; //Compilation Fail

B[] as = new A[]{new B()}; //fail too and answer E wrong

A[] as = new A[]{new B()}; //it's ok, answer C

but

interface I {}

class B {}

class A extends B implements I{}

I[] as = new A[]{new B()}; //fail

B[] as = new A[]{new B()}; //fail

A[] as = new A[]{new B()}; //fail

What is the answer correct?

Anatole,

Can you please start a new thread for your question? It would then be easier for me to follow and refer the question.