It would be president obama. i would love to hear his thoughts on the current state of the government, and what he would change about it today.
-Enough is Enough stop child labour
I mean I can think of more but I need more information
I'm gonna go with A & B " It provided a way for people to move west more easily." and "It created a mode for the transport of goods and services to the west." C is also somewhat applicable but I'm not 100% sure about C. Hope this helps.