Answer :

The section of the US Constitution that contains the elastic clause is Article I, Section 8. This clause is often referred to as the "necessary and proper clause" and gives Congress the authority to make laws that are necessary and proper for carrying out its enumerated powers.

Here's a breakdown of how the elastic clause works:
1. The elastic clause is found in Article I, Section 8 of the Constitution, which outlines the powers of Congress.
2. The clause states that Congress has the power to make all laws which shall be necessary and proper for carrying into execution the powers delegated to it by the Constitution.
3. This clause has been used to expand the powers of Congress over time, allowing for the creation of laws that may not have been specifically listed in the Constitution but are deemed necessary for the functioning of the government.

Therefore, when looking for the section of the Constitution that contains the elastic clause, you should focus on Article I, Section 8.