根据对话内容，从下面方框中选出恰当的句子补全对话。

A: I visited the Museum of Failure last week.

B: Museum of Failure?  What was on show?

A: Some of them were made by the most famous and successful companies like Apple and Coca-cola.

B:  Does it make fun of these companies?

A:  The companies always encourage young people to try and make mistakes.

B: Why?

A: Because they believe a person who never makes a mistake never tries anything new.

B: I see. Probably this is why the companies don't think it's shameful to have a show of their failed products.

A: You are right.  The key is whether or not you can learn from your mistakes.

A. Failure isn't always a bad thing. B. Of course not. C. More than 100 failed products. D. I can't really believe. E. I've never heart of it.