Which of the Following Is True of Global Business

Which of the following is true of global business?

A) It is the buying and selling of goods and services by people from different countries.
B) It is the buying and selling of goods and services among different states of a country.
C) It is the setting up of a factory in a country other than the parent country.
D) It is the buying and selling of goods and services within the states of a country.
E) It is the setting up of another factory in the parent country.