Six months after Sergei initiated a culture change effort in his organization, it looks like the new culture has taken hold. Whereas before employees wore 3-piece suits, now they are all wearing business casual or casual attire. However, 1 year afterwards, employees are all back to wearing 3-piece suits, and the culture is back to what it was before Sergei's change effort. This example best illustrates which of the following?

A. Equifinality

B. Attrition process

C. Attractor states

D. Negative entropy