Final answer:
When the drop at the end of the shift is $8 short in the register, it is important to report the shortage to the manager and fill out an incident report.
Step-by-step explanation:
When the drop at the end of the shift is $8 short in the register, it is important to handle the situation appropriately and ethically. The correct course of action is to report the shortage to the manager and fill out an incident report (option a). This ensures transparency and accountability. Attempting to hide the shortage (option b), borrow money from the cash register (option c), or blame a coworker (option d) are all unethical and can lead to severe consequences such as loss of job and damage to reputation.