Gunther Plc provides the following information on its acquisitions of non-current assets: (1) A non-current asset (asset a) was acquired on 1 January 2016 for 100,000. It had no residual value and a useful economic life of 10 years. On 1 January 2019, the useful economic life was revised to 6 years. The company depreciates similar assets using the straight line method. (2) (3) A non-current asset (asset b) was acquired for 12,500 at the beginning of 2017. It had a useful economic life of 5 years and no residual value. On 1 January 2019 the asset was revalued to 15,000. The useful economic life remains unchanged. The company depreciates similar assets using the straight line method. A non-current asset (asset c) was acquired for 25,000 at the beginning of 2017. It had a useful economic life of 5 years and no residual value. On 1 January 2019 the asset was revalued to 30,000. The useful economic life remains unchanged. Asset c was sold on 31 December 2019 for 16,000. The company depreciates similar assets using the straight line method. Required: (a) How would each of the transactions (1) to (3) be accounted for in 2019? (13 marks) (b) Compare and contrast accounting for tangible assets with that for intangible assets. Your answer to this part of the question should not be more than 200 words. (7 marks)