Answer:
From the most resources to the least, it is 3, 4, 2, 1.
Step-by-step explanation:
Pork is a large animal but not as much as a cow but it also does not produce as much meat as a cow. In terms of land required and total meat produced, pork is the highest on this list so it is option B.
The most amount of land and resources are taken up by cows, but they also produce a lot more meat than porks so they are in the second place on this list.
Chickens require a small amount of space but produce little meat.
If we guess that each egg weighs 60 grams, 1 kg of eggs equals to almost 17 eggs which a single chicken can produce easily. So the eggs require the least resources which means that they are option A.
I hope this answer helps.