Final answer:
Regulations for temporary licenses can vary, but often in industries like insurance, a temporary agent's license is commonly valid for 180 days, with policies in place to prevent repeated short-term renewals.
Step-by-step explanation:
When discussing temporary licenses, regulations can vary widely by state or country, and also by the type of license being referred to. However, generally speaking, temporary agent's licenses are often provisions in industries like insurance that allow for a person to work under certain conditions while they are obtaining or waiting for their official license. Each statement provided in the question should be analyzed carefully, although statement 'd' A temporary agent's license is valid for 180 days tends to be a common period for such licenses, it's important to check with the issuing authority for specifics, as this can vary. Statement 'b' also stands out as it highlights common policy to prevent repeated short-term renewals without moving towards a permanent license. Without more context, it's difficult to confirm with certainty which statement is correct.