What must you record if the aircraft is cleared to the posting fix with holding instructions?

When an aircraft is cleared to a posting fix with holding instructions, it is essential to note that documenting the fix is not necessary in the clearance itself. This is because the clearance given to the pilot implicitly includes the holding instructions associated with that specific fix. The pilot is expected to already have the fix in their navigation system, and they are responsible for following the holding pattern as instructed.

It is important to understand the context of the other options: Including the fix in the clearance could lead to unnecessary repetition, as it is inherently understood once holding instructions are given. Recording an expected departure time is typically pertinent to certain clearances or situations but is not specifically required when simply issuing holding instructions. Documenting the pilot's intent, while potentially useful in other scenarios, does not apply specifically to the straightforward task of providing holding instructions at a fix.

Thus, the focus on holding instructions means that while it's still important to execute clear communications, the fix itself does not need to be re-stated in the clearance, leading to the conclusion that it need not be included.