Which invention was most important in revolutionizing the meat industry?

Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be "the rail car", since these became refrigerated--meaning that meat could be transported to far distances safely.

Explanation:

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.  

this defines the ability for a flex item to grow if necessary. it accepts a unitless value that serves as a proportion. it dictates what amount of the available space inside the flex container the item should take up.

give brainlest