Cuba Spends the Highest Percentage of GDP 18

Cuba spends the highest percentage of GDP 18.7 percent) on education while the United States is the 38th highest spender with 5.7 percent of GDP. If spending on education is important for economic growth, which of the following statements explain why Cubaʹs economic growth rate is lower than the U.S. economic growth rate?
Data from United Nations Human Development
Programme)

A) Cuba trades with many more countries than does the United States.
B) Cubaʹs population is smaller than the U.S. population.
C) Cuba doesnʹt offer property rights that promote innovation.
D) all of the above explain why Cubaʹs economic growth rate is lower than the U.S. economic growth rate.