(17) what does fifo require?
a. throwing away leftover food
b. using new food before old food
c. organizing stored food by use-by date
d. discarding refrigerated food after 3 days

What does FIFO require?C. Organizing stored food by use-by date

The FIFO method is a storage system that works according to the sequence of goods entering the stock, always prioritizing the dispatch of those lots that arrived before. As the name says, First In First Out, that is, first in, first out. In this way, it is possible to have greater control of storage.

FIFO is a system that stipulates the rotation of goods and makes them move and order the output of the products, where the one that has been in stock the longest always leaves first, whatever the product: an input, a raw material, a commodity or finished products.

With this information, we can conclude that FIFO is a method of organization by date of arrival, thus controlling the time the product is stored and its validity.

Learn more about FIFO in link

C. Organizing stored food by use-by date. Also, You eat older food before new food so that the older food doesn't expire.