B) Cuba's economy weakened
None of them are really more powerful than any other they share the power and the all play a powerful role in our us government, to prevent any branch from becoming to powerful they would use a system called checks and balances.
Probably the companies that joined in marketing "personal computers" to consumers. That is when computers became smaller,more easily accessible, and people started to buy them for their homes. Before that, computers were gigantic things that only companies could afford. IBM, Apple, and Bill Gates and his software were some of the people who helped.
William Penn, who was the first governor of Pennsylvania, founded it on the principles of it being a place where people of different religions could come and not be persecuted. So B would be the most likely answer to your question :)
spain is the answer your looking for