It is the United States’ policy of asserting its full
authority over the American continent in 1823. It further states that any attempt
at colonization by European countries on lands in North and South America will
be viewed as an act of aggression by the U.S. government and will be a cause
for intervention.
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.
Answer:
the answer is A. all of these options