问题
单项选择题
The demand for a given resource will most likely decrease if the prices of substitute resources and complementary resources, respectively:Prices of substitute resources Prices of complementary resources（） ①A. Increase Increase ②B. Increase Decrease ③C. Decrease Increase
A. ①
B. ②
C. ③
答案
参考答案：C
解析：
A decrease in the price of a substitute resource would induce producers to use the substitute resource, reducing demand for the resource in question. An increase in the price of a complementary resource would decrease demand for both resources.