Nickname comes from his mentor, Andrew Jackson, who was called Old Hickory. Polk entered Congress in 1824, when Jackson won the popular, but not the electoral vote to John Quincy Adams. When Jackson won both, in 1828, Polk became his protege.
I think the answer is c. contemplative
Trade Rights The US had declared war because of the trade restriction brought about the British war between France and Britain. Britain had used 10,000 American soldiers into the Royal Navy and had tried to protect the Native American tribes in the north. Because of this, it had caused a blockage and trade expansion of the US.
The answer is B) by John C Calhoun giving in to Andrew Jackson.