Which of the following actions might Congress take as an implied power?

The action of drafting a military is an example of Congress exercising its implied powers, which are not explicitly enumerated in the Constitution but are inferred from the powers that are. The Constitution grants Congress the authority to raise and support armies, which includes the ability to enlist soldiers. This can reasonably extend to the power to draft individuals into military service, particularly in times of national emergency or war.

The Necessary and Proper Clause, often referred to as the Elastic Clause, allows Congress to pass laws that are necessary and proper for carrying out its enumerated powers. Drafting a military fits within this scope as it directly supports the constitutionally granted power to provide for the common defense.

In contrast, declaring war is an explicit power given to Congress, and while it is a critical function, it does not fall under implied powers. Regulating marriage and divorce laws is primarily a state responsibility and does not relate to Congress's constitutional powers. Conducting elections is also largely managed by state law, rather than a function that Congress has the authority to impose upon directly. Thus, drafting a military as an implied power is consistent with Congress’s broader obligation to ensure national security.