How does improving food-storage facilities make farming more sustainable?

A. It decreases the amount of water needed.

B. It keeps food from rotting as quickly and being wasted.

C. It decreases the amount of land needed.

D. It keeps chemicals from entering the watershed.

B. is indeed correct

I think the answer is B, it keeps food from rotting as quickly and being wasted. Food-storage facilities. Food storage allows food to be eaten after some time after the harvest rather than solely immediately. This ensures that there is food even during the time when there is no harvests and also prevents wastage of food at the time of harvest