Jackie works in transportation for a company that ships expensive, high quality fish all across the United States. The perishable nature of her product, the value of freshness, and the high prices she charges would lead you to recommend which transportation mode?

By air and train

Explanation:

When you ship merchandise nationwide you can do it by terrestrial or by air transportation. The fastest way to reach a destination is by air (in case you are not near a central distribution hub) and then putting your products inside a train. Nowadays trains are very safe, very cost effective and reach lots of places accross the country in a very short time. Also, id your merchandise is perishable (like fish) you can use special type of train wagon that will keep it to a specific temperature so that when it arrives to its destination, the product will keep its freshness and ready.