Final answer:
On a day when you're not providing direct ABA services, you should not bill or falsely represent that you are. However, you should display your RBT certificate if requested. Ethics dictate proper use and representation of credentials and billing only for services rendered.
Step-by-step explanation:
If you are not providing ABA services and it's a fun Friday, the correct course of action would be:
- C. Display your RBT (Registered Behavior Technician) certificate when requested.
The other options do not reflect appropriate professional behavior or ethical billing practices. Specifically, you should never bill for services that you are not providing, and you should only use your RBT credential in a professional context when you are actively delivering ABA services. On a day where you are not providing direct services, you still may need to show your credentials upon request, but this is far different from suggesting that you're performing ABA under your RBT credential when you are not.