Final answer:
A builder's license should be displayed at the place of business, which is a common regulatory requirement to demonstrate accreditation and legitimacy.
Step-by-step explanation:
The question pertains to the display regulations for a builder's license. A builder's license should be displayed at the place of business. This is typically mandatory for regulatory compliance and to inform clients of the builder's accreditation and legitimacy. While it may need to be shown in other circumstances such as during a sales transaction or when required for proof, the consistent display at the place of business acts as both a professional standard and a legal requirement in many jurisdictions.