D. coercion is correct. Hawaiʻi insurance regulation prohibits marketing practices that use improper pressure, intimidation, or threats to influence a consumer's insurance decision. Hawaiʻi Administrative Rules expressly classify as high-pressure tactics any method of marketing that induces or tends to induce the purchase of insurance through force, fright, threat, whether explicit or implied, or undue pressure . This language directly matches the scenario in the question.

The broader Hawaiʻi Insurance Code reinforces this principle. HRS §431:13-103 identifies boycott, coercion, and intimidation as prohibited unfair methods of competition when the conduct results in, or tends to result in, an unreasonable restraint within the insurance business.

The remaining choices describe different prohibited practices. Rebating involves offering an unauthorized premium reduction, benefit, or valuable inducement not stated in the policy. Twisting involves misleading comparisons or representations intended to cause replacement, lapse, surrender, or conversion of existing insurance. Cold lead advertising involves marketing that fails to disclose conspicuously that its purpose is insurance solicitation and that an insurance representative will make contact. Hawaiʻi's administrative rules distinguish all three practices from high-pressure tactics.

Reference topics: Hawaiʻi Administrative Rules §16-12-12.2; HRS §431:13-103; Coercion and Intimidation; High-Pressure Marketing Tactics; Unfair Trade Practices.