Which of the following goods would be included in the calculation of gross domestic product?

a. Chemicals sold to pharmaceutical developers
b. French fries sold to customers at a restaurant
c. Lumber sold to construction firms
d. Steel sold to an automobile manufacturer

All of the following goods would be included in the calculation of gross domestic product:

a. Chemicals sold to pharmaceutical developers
b. French fries sold to customers at a restaurant
c. Lumber sold to construction firms
d. Steel sold to an automobile manufacturer