Which of the following best explains the use of gross domestic product (GDP) in world economic analysis?______
a. It permits companies to compare their economic health against similar companies in other countries.
b. It is not useful for comparing the GDP for one nation over several different time periods.
c. It does not require any adjustments for inflation or deflation to make multi-year comparisons.
d. The GDP figure facilitates comparisons between the United States and other countries because it is the standard used in international guidelines for economic accounting.