老师，B为什么不对呢？

问题如下：

Which proposal for India is Amaral most likely referring to in his response to Mantri?

选项：

Patent initiative

Highway network

Auto and textile factories

解释：

A is correct. Mantri’s proposal to sponsor a patent initiative, which is likely to result in technology investment and improvement, is likely to cause a proportional upward shift in the entire production function, allowing the economy to produce higher output per worker for a given level of capital per worker. Technological progress also increases the marginal product of capital relative to its marginal cost.