Which of the following functional dependency specifications accurately represents the following situation:

A campus has many buildings.

Each building has a unique name.

Each building has many rooms.

All rooms in any given building are numbered sequentially starting at $"101".$

Each room has a certain capacity although many rooms in the same building or different buildings may have the same capacity.

Each room is assigned to a single department.

$($BuildingName$,$ Capacity$)($Department$,$ RoomNumber$)$

BuildingName $($RoomNumber$,$ Capacity, Department$)$

$($BuildingName$,$ RoomNumber$)($Capacity$,$ Department$)$

RoomNumber $($BuildingName$,$ Department, Capacity$)$