Which is a lawful cause for cancellation of an individual long-term care insurance policy by...

Virginia Code § 38.2-5208 allows LTC policy cancellation by the insurer for nonpayment of premium (option A) after a 31-day grace period and notice, a standard contract right. Option B (Medicaid eligibility) isn’t a cancellation cause; it may coordinate benefits, not terminate coverage. Option C (insurer insolvency) affects payment ability, not lawful cancellation grounds. Option D (nuisance claims) isn’t a legal basis; claims frequency doesn’t void coverage unless fraudulent (Virginia Code § 38.2-309). The study guide likely lists nonpayment as the primary insurer-initiated cancellation reason, with examples like missed payments triggering notice, making A the lawful cause.