题目中要求的是critisism of historical costing as an economically sound pricing method,所以要考虑的是这种方法究竟是否是economically sound (一种定价法是否完善和成熟应取决于其是否具有弹性,能否反映其各项成本的变化), B和C选项中体现了这种方法能反映inflation和cost of materials 的变化,显然是economically sound的,而A中因为previous year's contractual price是相对不变,有可能导致inefficient use of funds 的,所以不是economically sound的。
为什么大家在讨论站在谁的角度说的问题啊?这题的问题后面是for military contracts,而不是for military contractors呀。
Which of the following statements, if true, is the best basis for a criticism of historical costing as an economically sound pricing method for military contracts?
Between C and D: C if material prices go down a lot this year, but the contract prices are still based on last year’s prices, then C can explain the method is not economically sound. But if material prices go up, then it’s sound. So C is not a sure criticism, therefore not best.