Answer: B? I'm not very sure but from my research I suppose it's this.
What comes with independence is the freedom to make your own decisions and do what you want without fear of restriction or consequences from some higher authority. If you make it clear to the world, you are declaring that no one can own you and tell you want to do or what rule you can follow.
"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