Which of the following statements about th
题型：单项选择题
问题：
Which of the following statements about the elasticity of demand is least accurate（）
A. The most important determinant of price elasticity of demand is the availability of substitutes.
B. Prices are more elastic in the long run than in the short run.
C. When demand is inelastic, an increase in price will cause a decrease in the total expenditure on a good.