Isolationism.
The Great Depression and the fact that the US kinda promised to not do another World War like the Great War caused them to not want to join WWII at first. Then Pearl Harbor happened and they decided to be done with their policy of isolationism.
B. bias...it means they already have an opinion
"A" would be the correct answer. Even though the main goal of the voyage was to find a different sea route to Asia. Bartolome and other Portuguese explorer have also made stops along the African coast and started to realize how could of an alternative they would be compared to the Mediterranean trade routes
These are all pretty edgy answers, so I hope I am right xD
Answer:
The first part would be go to war with Japan
Explanation:
After the attack, Franklin Roosevelt used it as an excuse to enter into the war.. I'm not sure what you mean in the second part of the question, though. Sorry.