What did Robert Smalls accomplishment?

Afterward, Smalls became the pilot of a Union ship, the USS Crusader, and later captain of the Planter. He became the first black man to be promoted to captain, although he was never a commissioned officer. In 1897, by an act of Congress, Smalls was granted a pension equal to that of Navy captain.

- 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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i think the answer is the one about environmental and social health.

hope this