Try searching it up in google first
I think the correct answer from the choices listed above is option 4. The refrigerator car is the invention which was most important in revolutionizing the meat industry. It <span>is a </span>refrigerated <span>boxcar, a piece of railroad rolling stock designed to carry perishable freight at specific temperatures.</span>
Because Hoover wanted to end the Great Depression but I'm not entirely sure
I believe the answers are <span>C and E</span>
I believe it would be A. and C.
Hope it helps.