Johnny Thinks That Changing an Organisation's Culture Is Like Losing

Johnny thinks that changing an organisation's culture is like losing weight: it's difficult and it can be done, but the effect is usually temporary.Is Johnny correct?

A) Yes, because once a culture is changed, it usually changes back.
B) Yes, because once a culture starts to change, it is hard for it to stop changing.
C) No, because changing an organisation's culture is impossible.
D) No, because changing an organisation's culture is easy.
E) No, because once a culture is changed, it tends to stick.