Scarcity is what forces you to make trade-offs. Suppose you have an economy that produces and consumes 2 products, A and B. In a world without scarcity, you have enough resources (land, machinery, raw materials, manpower) to produce as many of each product as you need/want. However, in a world with scarcity, you have a limited amount of production resources. You can produce, let's say, 10 A products or 10 B products, or a combination of both products with less than 10 products each. For every additional A product you produce (up to the max of 10), you have to produce less B products. This is a trade-off.
The correct answer would be alternative A) "most of those increases in agriculture are cash crops reserved for export."
The increase of production of crops doesn't benefit the hungry, as the crops are not meant for them. They're destined to exportation. For this reason, the hungry don't get anything from the increase in production.
One of the ways to prevent hunger in developing countries would be to have this crops used for social programs, and distribute food to the hungry. However, that's not the way it's done.
True much of blake’s inspiration for his work came from myths the bible and his own visions
