What is the source of the national government’s delegated powers?

the constitution
the congress
state governments
international treaties

The Constitution

Explanation:

The delegated powers are those powers specifically granted to the U.S. federal government in Article 1, Section 8 of the United States Constitution. Therefore, the source of these powers is the Constitution.

In this section, the Constitution grants Congress the power to lay and collect taxes, duties, imposts and excises, to pay the debts and provide for the common defense and general welfare of the nation, to borrow money, to regulate international and interstate commerce, to coin money, to establish post offices and post roads, to provide and to maintain a navy, among others.

no , per capita income is not a true measure of the development because: -it only tells us about average income not how income is distributed among the people.it only give us an idea of the economic aspect.it is only at the qualitative basis.moreover, income is not only the way of development other factors are also as much as important as income.