Which of the Following Is a Reason That Growth Rates

Which of the following is a reason that growth rates in high-income countries appear to be falling?

A) The service sector has been the fastest-growing sector in many high-income nations, and many services have not had increases in productivity.
B) Increased foreign aid is diverting investment funds to developing countries and reducing investment in high-income countries.
C) The growth in jobs has primarily been in low-skill jobs, which do not add as much to national output as high-skill jobs.
D) Population growth rates have accelerated, making it harder to achieve growth in per capita measures.