Christopher Columbus was a voyager who traveled to many places to find territories.
It would be c. Sailor
Most recorded history of this said event points to Truman making a better decision for more people. Some people who have studied different angles on why he made the decision is that Truman believes that Japan will not surrender, they will fight until their deaths and the death of their people. So in order for the war to stop, he just had to make a big decision on using the atomic weapons so Japan will be shook into consciousness to end the war and stop fighting.
The correct answer is - cornu.
The cornicen was using an instrument cornu, after which he got the name. The cornicen was a junior officer at the Roman Imperial Army, and his role was to signal the salutes for the officers of the army, and more importantly to use the signals from the cornu as orders for the legions who of course new what each sound meant. The corniciens were always at the head of the centuries, along side the signifier and the tesserary.
North Carolina I believe fits in most