Answer:
Improved transportation was expensive for most Americans but made the transportation companies rich.
Step-by-step explanation:
took the test and got it right. this answer makes common sense because everyone wanted to go west for gold and more land as a result people made a faster way to get there being transportation, making the fear of death on the trip less likely. as a result, some people bought transportation for an expensive price which overall made the transportation companies rich. Hope this Helps