Final answer:
For losses over $1,000, the installation commander appoints an investigating officer. This is to ensure a thorough investigation and proper accountability within military or government settings. The correct option is D.
Step-by-step explanation:
When losses exceed $1,000, the individual responsible for appointing an investigating officer is the installation commander (D). This officer is tasked with conducting a thorough investigation into the circumstances surrounding the loss.
It is critical for proper accountability and oversight in organizational settings, especially within military or government environments, where the handling of resources must adhere to strict regulations.