A business buys a machine for \(£ 45,000\) which it believes will last for ten years, after which it will be worth \(£ 5,000\). Using the straight line method of depreciation, what will be the machine's carrying amount (or 'net book value') after three years of use?

(A) \(£ 30,000\)

(B) \(£ 31,500\)

(C) \(£ 33,000\)

(D) \(£ 28,000\)