If Each of Us Had to Grow Our Own Food

Multiple Choice

If each of us had to grow our own food:

A) civilization as we know it would collapse and billions of people would have much less food to eat.
B) we would have more time for other pursuits.
C) people would be richer since they would no longer have to spend money on groceries.
D) the total amount of knowledge in society would increase since everyone would have to learn about farming.