What’s the result of subtracting 2 from its opposite

How did the completion of the transcontinental railroad change the lives of american citizens? a-it increased the wealth of all americans and enabled them to travel more.b-it made cross-country travel too expensive for ordinary americans.c-it decreased the safety of americans who moved to settle the plains.d-it shortened travel time between the east and west for all americans.

Who believed that the best economic system was on in which businesses compete to gain profit with minimal or no government control

“i now wished for the last friend,death, to relieve me.” what is equiano referring to?