It is vital to research each of the services you plan to disable before implementing any change, especially on critical machines such as the:

The available options are:

A. Servers in the test environment.

B. Domain controller and other infrastructure servers.

3. Desktops that have previously been attacked.

4. Desktops are used by upper-level management.

Domain controller and other infrastructure servers

Explanation:

A domain controller is a critical machine or server in a network operation on Microsoft Servers. It serves as the authorization point in which security authentication can be granted, such as managing users' account data, security policy, and all other vital information well arranged and secured.

Hence, considering the available options, the right answer is "Domain controller and other infrastructure servers."

i'm so sorry that's not a question and this isn't an answer