I suppose the C is right, because at that time,Spain and Portugal take advantage of slave and cane to be rich, they buy the black people from African to plant sugar cane.
I just took the quiz and the answer is the United States was the target, but the effects of the 9/11 attack were felt worldwide by countries who lost citizens.
Hope this helps! :)
In 1917, Germany attacked some passengers in submarines from the US that led the US to assist in WW1. Hope this helps!
Im pretty sure albert einstein was the one who sent word of the newfound energy source to franklin D. Roosevelt.