Final answer:
Retention periods are a logical design decision that can be attributed to required regulation.
Step-by-step explanation:
The logical design decision that can be attributed to required regulation is Retention periods. Retention periods refer to the length of time that data must be stored in a database, which is often dictated by regulations and legal requirements. For example, the European Union's General Data Protection Regulation (GDPR) mandates specific retention periods for certain types of data. By incorporating retention periods into the logical design of a database, organizations can ensure compliance with required regulations.