Answer:
All three tasks can be delegated to the UPL by the Commander, depending on the specific situation and their preferences. Option (D) is true.
Step-by-step explanation:
Selecting Observers: The UPL is typically responsible for identifying qualified personnel to act as observers during the collection process.
This ensures impartiality and adherence to protocol.
Conducting the Commander Briefing: While the Commander usually delivers the initial briefing, they can delegate it to the UPL if they're unavailable or prefer the UPL to handle it.
Selecting Personnel: The UPL can be tasked with randomly selecting individuals for testing using approved methods like the DTP system.
This reduces bias and ensures a fair selection process.
All three tasks can be delegated to the UPL by the Commander, depending on the specific situation and their preferences.
Thus, option (D) is true.