which of the following conditions is it recommended to perform a server adapter upgrade?

Under which of the following conditions is it recommended to perform a server adapter upgrade?

A.
When a server adapter upgrade becomes available.

B.
When you need to add a new function to the server.

C.
When the server is performing all required tasks efficiently.

D.
All of the above.

Explanation:
You should choose to use a server adapter upgrade that becomes available when you

need to add a new function to the server. Avoid simply performing the upgrade because it is there.
Incorrect
Answers:
A: Always place server stability before simply just installing new adapters when they become available.
C: When the server is performing all required tasks efficiently, you do not need to change anything.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 405-406.