In a television advertisement for a health insurance product endorsed by a specific group, what must be disclosed?

In a television advertisement for a health insurance product that features an endorsement by a specific group, it is crucial to disclose any control exerted by the insurer over the endorsing group. This requirement promotes transparency and allows potential consumers to understand the nature of the endorsement. If the insurance company has significant influence or control over the group that is endorsing its product, it may bias the endorsement and mislead consumers regarding the reliability of the group's support.

Consumers should know whether the group is genuinely advocating for the product based on its merits or if the endorsement is primarily driven by the financial interests of the insurer. By disclosing this information, the advertisement helps ensure that consumers can make informed decisions based on the authenticity of endorsements, fostering trust in the insurance market.

The other options, while they may seem relevant, do not align with the core requirement for transparency in endorsements. For instance, the total amount of premiums or the insurer's profitability relates more to financial considerations rather than the integrity of the endorsement itself. Similarly, the history of endorsements is not as directly connected to the transparency of the relationship between the insurer and the endorsing group.