<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the transcripts of deliberations between the Americans in the war room leading up to the invasion, although these are classified. </span></span>
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>
