(d) They were extremely radical.
On May 7, 1915, a german submarine torpedoed and sank the Lusitania, a British cruiseliner which had 128 American citizens on board, as well as military goods. It was the first step to the US joining the war.
hope this helps
Passed in 1830, authorized Andrew Jackson to negotiate land-exchange treaties with tribes living east of the Mississippi (targeted Georgia). The treaties enacted under this act's provisions paved the way for the reluctant—and often forcible—emigration of tens of thousands of American Indians to the West.<span>Nullification Crisis</span>
