单选题 Which of the following is most likely a factor that influences the elasticity of supply for a good?
  • A. The availability of substitute productive resources.
  • B. The price of the productive resources used to produce it.
  • C. The proportion of consumers' budgets spent on the good.
【正确答案】 A
【答案解析】[解析] 供给弹性的大小主要受以下两个因素的影响：(1)生产资源的可替代性。一种商品生产资源的可替代性越高，则该商品的供给弹性相应越高；反之，则越低。(2)供给决定时间。因此，本题的正确选项为A。