f a borrower fails to maintain adequate flood insurance, a servicer must:
A. Foreclose on the property.
B. Notify the borrower 10 days before the policy expires and purchase the insurance on behalf of the borrower
C. Force-place the insurance and notify the borrower of the cost within 10 days of renewing the policy.
D. Provide the borrower with a notice of deficiency and force-place the insurance if the borrower does not obtain it within 45 days of the date of the notice.