Which of the following is a primary source of underwriting information for life insurance?

The primary source of underwriting information for life insurance is typically the applicant's health records. This is because an insurance company needs to assess the risk associated with insuring an individual, and a person's health is one of the most significant factors in that assessment. Health records provide comprehensive details about an individual’s medical history, current health status, and any pre-existing conditions, all of which impact the likelihood of the applicant making a claim in the future.

While the other sources listed can provide valuable information during the underwriting process, they do not carry the same level of importance as health records. Financial statements might give insights into the applicant's economic situation, employment history can suggest stability and lifestyle choices, and credit scores help assess financial responsibility. However, none of these factors are as directly correlated to the risk of life insurance as the applicant's health data. Understanding health is fundamental, as it directly influences life expectancy and potential claims, making it vital for underwriting decisions.