(a) On 1st January 2018 a business purchased a printer costing 1,800. The printer has an estimated useful life of 4 years after which it will have no residual value. Required: Calculate the printer's Annual Depreciation charge for 2018, 2019, 2020 and 2021 based on: [i] Straight Line Method [ii] Reducing Balance Method at 40% per annum [iii] Explain the reasons why a company may choose the Reducing Balance Method [10]