Final answer:
The correct answer is d) Syndicate. When several large insurance companies join together to underwrite a large insurance policy, it is referred to as a syndicate.
Step-by-step explanation:
The correct answer is d) Syndicate. When several large insurance companies join together to underwrite a large insurance policy, it is referred to as a syndicate. A syndicate is a temporary association of businesses or individuals formed to undertake a specific project or venture. In this case, the insurance companies are pooling their resources and expertise to collectively take on the risk of the extremely large insurance policy.