Which scenario below best illustrates subsistence farming?

A) Andres and his family work ten hour days to maintain their farm of banana, cocoa, and mango so that they can sell them at the market in town.
B) Lilah sells ten million dollars worth of opiates to the black-market annually en route to establishing herself as the most adorable drug kingpin the world has ever seen.
C) Jean Luc and his family grow mangos, millet, cucumber and tomatoes on their home farm. They eat all of the crops they grow and do not have other jobs.
D) Dole Pineapple produces an annual revenue of over 8 billion dollars as they supply pineapples and pineapple juice to countries all over the world.
E) Billy Bob's farm produces dairy cows and corn. The majority of the corn is fed to the cows.