单选题 Long-run aggregate supply is least likely to be affected by changes in the:
A. the stock of physic capital.
B. the supply of natural resources.
C. the wage rate of labor.

【正确答案】 C
【答案解析】[解析] 长期总供给主要受到劳动力的供给和质量、自然资源的供给、实物资本的储存和技术等的影响。