Virginia Code § 38.2-3505 requires disability income policies to include a misstatement of age provision. If an applicant misstates their age, the insurer adjusts benefits to what the paid premium would have purchased at the correct age, rather than voiding or canceling the policy. Option A reflects this adjustment process. Option B is false; the insurer remains liable, adjusting claims rather than denying them outright. Option C is incorrect; immediate cancellation isn’t standard unless fraud is proven (Virginia Code § 38.2-309), and age misstatements are typically clerical errors, not fraud. Option D is wrong; voiding from inception requires material misrepresentation with intent to deceive, not a simple age error. The study guide likely explains this clause as a fairness mechanism, protecting both parties, making A the correct answer.