Answer: The following is not an example of an unhealthy company culture: A slowly evolving culture
In the given question it can be stated that apart from option (d) , all other option are an example of an unhealthy company culture. This is so as, the slow evolving culture in an organization is still open to change and does adapt to the need of the surroundings as time evolves, whereas; other given option does not.
Therefore , the correct option in this is (d)