Assuming sea dogs means Pirates, then Navymen.
They got to prove their worth and that they were patriotic.
All you're basically doing is filling out/answering the following questions: who is the person? What did they want? What hindered their plan or what challenges did they face? What happened after that?
Hope this helps. Have a good day! :)
The correct answer is C. Manifest destiny was the idea that the United States should stretch "from sea to shining sea". It was known as westward expansion.
