Selection of the best mode of transportation is a key element of the logistics function. Given each Scenario below. Specify which is the most appropriate mode of transportation.

Scenarios:

Coal $($over $1000$ miles, same land mass$)$:

$[$ Select $]$

Human organs used for transplant within the same country$/$continent$,$ over $1000$ miles:

$[$ Select $]$

Tens of thousands of pounds of grain used for production of beer $($over $1000$ miles, same land mass$)$:

$[$ Select $]$

$5,000$ lbs$.(2271$ kilos$)$ specialized parts used in manufacturing equipment, average value $($less than $500$ miles, same land mass$)$: