Marks Nance Company estimates that its annual warranty expense is 4% of net sales. The following information relate to calendar year 2020. Net sales: $1,500,000 Unadjusted balance of Provision for Product Warranty: 10,000 Debit The adjusted ending balance of Provision for Product Warranty should be: O A $60,000 OB. $70,000 OC. $50,000 OD. Some other amount that depends on the cost of repairs in 2020 under the warranty ure