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I think it is answer A, Common law because it is derived from custom and judicial precedent.
Congress wanted to remove Grant because of an unfortunate scandal he got involved in
<h3>What was the Scandal all about?</h3>
Ulysses S. Grant was the 18th president of the United State, he was involved unintentionally in a tax fraud masterminded by his private secretary.
Grant was involved in this fraud unknowing to him, hence Congress wanted to remove him as president.
Learn more about the Grant scandal here:
brainly.com/question/21224869
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<span>The correct answer is obtaining the compass from Asia. By the fifteenth century, the Arabs had significantly improved the compass, making it a much more valuable tool for navigation. In addition, many Europeans hoped that exploration would find new, undiscovered potential sources of wealth.</span>