Al-Khwair Enterprises purchased machines for OR 144,000 on January 1, 2019. The equipment is expected to have a five-year life and a residual value of OR 12,000. 1. Using the straight-line method, depreciation for 2019 would be: Oa. 22,000 Ob. 28,800 Oc. 144,000. Od. 26,400. 2. Using the straight-line method, depreciation for 2020 would be: Oa. 144,000 Ob. 28,800. Oc. 26,400 Od. 57,200 3. Using the double-declining balance method, depreciation for 2019 and the book value at December 31, 2019, would be: Oa. 52,800 and 73,200. Ob. 52,800 and 91,200. Oc. 57,600 and 86,400. Od. 57,600 and 74,400. 4. The double-declining balance method, depreciation for 2020 would be: Oa. 115,200. Ob. 57,600 Oc. 36,480 Od. 34,560