Answer :
people could trade intereact with eachother and go somewhere and see other people
A) by putting tracks through lands that had not been livable
B) by providing a fast reliable way to send mail
C) by competing with the use of the telegraph
D) by connecting the northern and southern states
B) by providing a fast reliable way to send mail
C) by competing with the use of the telegraph
D) by connecting the northern and southern states