Physical Capital Differences Across Countries Can Be Seen in the Fact

Physical capital differences across countries can be seen in the fact that

A) students in India study the same subjects as those in the United States.
B) more advanced economies typically have more sophisticated technology.
C) the iPhone's components are produced in 30 countries.
D) advanced economies produce 53 percent of the world's income.
E) furniture factories in China use machines like those in North Carolina.