Identify the Correct Statement

Identify the correct statement.

A) National income accounting measures only the flow of output between different sectors of an economy.
B) National income accounting summarizes the level of production in an economy over a decade.
C) National income accounting explains diagrammatically the flow of goods and services and of money expenditures (income) .
D) National income accounting summarizes and categorizes the productive activity in an economy over a year.
E) National income accounting measures the total money supply in an economy.