Question

question 1-9
the \elastic clause\ gives congress implied power to act in areas not specifically expressed in the constitution at the time it was written.
congress exercises its power under the \elastic clause\ when it -
○ declares war on a foreign nation
○ establishes a post office in a small town
○ authorizes the testing of nuclear weapons
○ prohibits the collection of export taxes

Explanation:

The "elastic clause" (Necessary and Proper Clause) allows Congress to make laws for implied powers not explicitly stated in the Constitution. Declaring war, establishing post offices, and prohibiting export taxes are either explicit powers or not related to implied powers from the elastic clause. Authorizing nuclear weapons testing is an action requiring implied power as it's not a power explicitly given in the original Constitution, so Congress uses the elastic clause to authorize such actions related to national security and technology that weren't foreseen at the time of the Constitution's writing.

Answer:

C. authorizes the testing of nuclear weapons