It led to neighbors blaming each other of being communist spies. It also lead to a lot of people being wrongly accused and thrown wrongly into jail. Another effect was that it left Americans scared that communism might take over.<span />
Both C and D make sense, I would have to go with C though.
They hoped to gain natural resources.
The software components are known as "system files". These files are responsible for breaking down the many tasks at hand for the computer and making sure each one is completed in the proper order.