Final answer:
An insurer incorporated under the laws of a country other than the United States is referred to as an alien insurer.
Step-by-step explanation:
An insurer that is incorporated or organized under the laws of a country other than the United States is known as an alien insurer. This classification is used to identify insurance companies in the U.S. insurance market that are not domestic (U.S.-based) or foreign (based in another state within the United States), but rather are incorporated in a different country altogether. This type of insurer may still operate in the United States under certain regulatory conditions.
Answer: C. alien