In short-term decisions, raw material cost is * O a) relevant because it is a differential cost O b) not relevant because it is a differential cost O c) relevant because it does not change from one period to the next d) not relevant because it does not change from one period to the next e) none of the above In short-term decisions, raw material cost is O a) relevant because it is a differential cost a O b) not relevant because it is a differential cost b c) relevant because it does not change from one period to the next O d) not relevant because it does not change from one period to the next O e) none of the above