A third type of citizen could vote and practive commerce, but could not hold office or marry
He was originally trying to find a area somewhere on the coast of the United States to try and find gold deposits and return wealth to the royalty of Portugal.
By the beginning of October of 1950, UN forces had pushed the North Koreans back to the Yalu River. Option three is correct.
By September 1950, UN forces led by the American General MacArthur landed in Inchon and immediately pushed the North Koreans back over the 38th parallel. Later on, by October 1950 they had rolled back the communists to the Yalu River on the border with China.
It took two to three weeks.