How does the expenditure approach calculate gdp?

b. it adds up the value of four groups of final goods and services.
c. it adds up the value of business goods and services.
d. it adds up the value of consumer goods and services.

The acronym GDP stands for Gross Domestic Product so it means its all about the sales and profit of a company and the expenditure approach increases or adds up the value of business goods and service and because of that reason the answer is C.