13 A claim for refund is a request for reimbursement of the overpayment of taxes paid in previous years. To be valid, a claim for refund must include which of the following features? Select one: a. The claim for refund can be made by telephone or in writing. b. The claim for refund must be signed only by the taxpayer c. The claim for refund must be filed within the set statute of limitations d. All of the above are correct