Final answer:
Frances could use the Grave Markers coverage in her homeowner's insurance policy to cover the costs of cleaning vandalism from her mother's headstone.
Step-by-step explanation:
If Frances has Grave Markers coverage included in her homeowner's insurance policy, this coverage would help her with the cost of removing the spray-paint from her mother's headstone. Grave Markers coverage is an additional option in some insurance policies that helps with costs associated with vandalism or damage to a headstone, regardless of whether the headstone is located on the policyholder's property or not.
Therefore, the correct answer is B. Grave Markers coverage. It is important to review your homeowners policy or consult with your insurance provider to understand what additional coverages might apply to your situation.