Final answer:
The rules of spacing within a room can be altered when the room's usage requires something unusual, such as special events that necessitate non-standard layouts.
Step-by-step explanation:
When spacing rules can be bent depends on certain circumstances. It is generally accepted that rules of spacing within a room can be adjusted when the use of the room requires something unusual, such as for special events or functions where traditional layouts may not suffice. Therefore, the answer to when it might be acceptable to bend the rules of spacing is: B. The use of the room requires something unusual.
This acknowledges that practicality and function can at times necessitate deviation from standard guidelines. For instance, when accommodating a large number of people for a social event in a limited space, conventional spacing may be reconfigured to optimize the area.