Final answer:
A pharmacy can change its inventory date from its regular biennial schedule only with prior approval from the appropriate regulating agency, such as the DEA for controlled substances in the United States. The option (C) is correct.
Step-by-step explanation:
Pharmacies are required to adhere to strict regulations concerning the inventory of controlled substances. In the United States, for example, the Drug Enforcement Administration (DEA) allows a pharmacy to change its inventory date, but only if the pharmacy files a notification with the DEA in advance, effectively seeking and obtaining approval.
This is to ensure that there is proper oversight and to prevent any discrepancies that might arise from unscheduled inventory changes. It's important to note that this process is intended for controlled substances; records for non-controlled substances may have different requirements and are not as strictly regulated, but it is best practice to maintain consistent inventory processes. Therefore, option (C) is correct.