Which of the following excerpts from the Constitution describe federalism?

The power not delegated to the United States by the constitution are reserved to the states

Explanation:

Federalism is a system of government that created one central government along with several states that work under the management the central government.  One characteristic of a federalism is the existence of division of power between the federal government and the states government.

The phrase excerpts from the constitution proof the existence of that division of power. With the exception of several key issues that might affect the nation as a whole, the states government tend to be given with a freedom to manage their own without the intervention from the central government.

they required less loading and unloading

explanation:

the shipping container improved shipping because it cut down on unloading time by three weeks, eliminated wasted space, and allowed ships to carry.

d: their own individual powers within the new goverment