. Which of the following statements is correct regarding long-term construction contracts? a) ASPE only allows the use of the completed-contract method. b) ASPE only allows the use of the percentage-of-completion method. c) IFRS only allows the use of the percentage-of-completion and the zero-profit method. d) IFRS allows the use of the percentage-of-completion and the zero-profit method, but does not preclude the use of the completed-contract method.