The answer is c. over pumping underground aquifers<span />
you wanna know what else is do today
The 15th Amendment to the Constitution granted African American men the right to vote by declaring that the "right of citizens of the United States to vote shall not be denied or abridged by the United States or by any state on account of race, color, or previous condition of servitude.
Your answer is the threat of using military force in foreign policy.