Final answer:
A suitable response would be option (C): Tell her she can certainly remove the tree limb, but any expense she incurs may not be reimbursed without the adjuster's approval.
Step-by-step explanation:
If Mary asks if she can remove the tree limb that is piercing the roof, a suitable response would be option (C): Tell her she can certainly do so, but that any expense she incurs cannot be reimbursed unless the adjuster approves the extent of repairs and amount of expense beforehand. This is because the adjuster needs to assess the condition of the property as it is immediately after the storm, and any expenses incurred without their approval may not be reimbursed.