In each of the following, indicate which of the four essential economic activities is taking place.

a. Ms. Katar, an executive at Acme Manufacturing, directs the cleanup of one of the company’s old industrial waste dump sites.

b. Mr. Ridge plants a garden in his yard.

c. Ms. Fuller hands an unemployed worker a bag of groceries at a local food pantry.

d. Mr. Hernandez eats lunch at a cafeteria.