Industrial machinery is an example of ? A. physical capital B. a factor of production that in the past was an output from the production process. C. something that influences productivity. D. All of the above are correct. Which of the following best illustrates the human capital of a survivor stranded on an island? A. the fresh fruit and fish on and around the island B. her previous training in a survival course C. the fishing poles she has produced D. the invention of a better fishing lure
