A, the Bland-Allison Act.
It was an act in 1878 with the U.S. Congress requiring the U.S. Treasury to buy a certain amount of silver and to put it into circulation as silver dollars.
Its A Cabeza de vaca hope it helps
<span>The idea was further refined in Minnesota where </span>charter schools<span> were developed according to three basic values: opportunity, choice, and responsibility for results. </span>
They used democracy so every one voted on the next one in charge<span />
The answer is A, the company that writes these school workbooks makes the question sound way more confusing than it has to be.