According to IAS 38 Intangible assets, which of the following statements about research and development expenditure are correct? 1 Research expenditure, other than capital expenditure on research facilities, should be recognised as an expense as incurred. 2 In deciding whether development expenditure qualifies to be recognised as an asset, it is necessary to consider whether there will be adequate finance available to complete the project. 3 Development expenditure recognised as an asset must be amortised over a period not exceeding five years.