The correct answer to this open question is the following.
Although there are no options attached, we can comment on the following.
The power the government is expressing is its power granted by the 10th Amendment to the United States Constitution.
Yes, the federal government has the power to construct interstate highways.
The 10th Amendment promotes a balance of power between the Federal and State governments in the federal system.
In less complicated terms, the 10th Amendment to the United States Constitution refers to the idea that any power that is not considered to the federal government is given to the states. On September 5, 1789, the amendment was added to the US Constitution. Literally, the 10th Amendment says: "The powers not delegated to the United States by the Constitution, nor prohibited by it to the states, are reserved to the States respectively or the people." The amendment respects the principle of federalism and gives the states the faculty to have some rights to create a balance of powers.
Furthermore, the Highway Act of 1956, strengthen the power of the federal government to construct highways.