What database might an underwriter use to obtain information about an applicant’s claim history if their insurance company is a member of ISO's AISG?

The correct answer is A-PLUS, which is a claims history database managed by the Insurance Services Office (ISO). Underwriters use A-PLUS to access detailed information about an applicant’s claim history, which helps them assess risk and determine appropriate premiums. A-PLUS provides insights into property and casualty claims, including the nature of the claims, dates, amounts, and resolution status, allowing underwriters to make informed decisions based on the applicant's past insurance behavior.

The other options do not align with the specific context of ISO's AISG membership. While CLUE is another claims history database, it is primarily used in the context of personal auto and homeowners insurance and is not unique to the ISO framework. The Claims History Database is too vague and does not refer to a specific, established database that an underwriter would typically use. The Insurance Information Institute focuses on industry research and education rather than directly maintaining claim history databases for underwriting purposes. Thus, among the available options, A-PLUS is indeed the most relevant source for claim history information within the context of ISO's AISG membership.