Answer:
A. the route Europeans followed to get around Africa to Asia
I would say that there aren't really any absolute standards for truth and justice. The reason for this is that considering we're only one species that has evolved out of apes, it is really hard to say whether the way we perceive reality and discover things through science can be thought as an absolute standard for truth. From this perspective it's even harder to find an absolute standard for justice.
Colonial unity, an ongoing struggle, was necessary for preserving freedom. It was imperative that the colonies put aside their differences and unite even during the French and Indian War when they were allies with the British.
Some think it was called this because of how the skin turned dark at the late stages of the disease, but it was more likely called "Black" to reflect the dark and horrible time in history.