What is the best explanation of the importance of the Second Amendment?
People accused of a crime need to be able to speak in their defense.
If people cannot talk about policies, they cannot change them.
People in the military should have the right to vote in elections.
People need to have the ability to protect themselves and their homes.

D. People need to have the ability to protect themselves and their homes.

Explanation:

The 2nd Amendment explicitly defines that individuals have the right to carry weapons for self-defense.

- three-quarters or two-thirds..

- "the constitution provides that an amendment may be proposed either by the congress with a two-thirds majority vote in both the house of representatives and the senate or by a constitutional convention called for by two-thirds of the state legislatures."

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to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.