Question $35(3$ points$)$

Gerard's performance has been lower in the last six months than his average over the previous three years. Gerard's supervisor wants to understand why Gerard's performance has slipped. It is obvious that Gerard's individual ability has not changed, so the supervisor should consider all of the following factors EXCEPT

$$ A$)$ whether Gerard is having trouble working with new software installed six months ago.

$$ B$)$ whether Gerard's personality has changed.

$$

C$)$ whether Gerard has lost his motivation for some reason.

D$)$ whether the supervisor herself has changed how she manages Gerard.