One Way to Avoid Counting the Prices of Intermediate Goods

One way to avoid counting the prices of intermediate goods multiple times in computing the value of GDP is to:

A) sum the value added of only producers of final goods and services.
B) sum the value added of only producers of intermediate goods and services.
C) sum the value added of producers of both intermediate and final goods and services.
D) subtract the value added of producers of intermediate goods and services from the value added of producers of final goods and services.