The American workers tend to be much productive than their counterparts in the South America or Asia in part as they have: (i) Superior natural genetic endowments. (ii) Access to the better sports programming, that promotes the team-work. (iii) More capital to work with and superior technology. (iv) Stronger work ethics. (v) Less susceptibility to being substituted by automation.
Can someone please help me in finding out the accurate answer from the above options.